[Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000


Alexandre Uster von Baar
 

Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands




--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 5:29 AM


 









I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM           Boat speed in
KN

1500.                                 
4.7

2000.                                 
6.3

2500.                                 
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345












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VLADIMIR SONSEV
 

How many HP in your engine?
My boat was fully loaded.

On Jan 6, 2016 7:32 AM, "Alexandre Uster von Baar uster@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 5:29 AM


 









I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM           Boat speed in
KN

1500.                                 
4.7

2000.                                 
6.3

2500.                                 
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345












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Alexandre Uster von Baar
 

My boat was definitely fully loaded too...

If you look at the specs, the Volvo TMS 22 P is rated for 78 HP, but only if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800 rpm 40 hp.

Sincerely, Alexandre




--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM, "Alexandre Uster von Baar uster@rocketmail.com
[amelyachtowners]" <amelyachtowners@yahoogroups.com>
wrote:















 









Good morning Vladimir,

My speeds were similar, using the Volvo TMD 22.



1400 rpm 4.5 kt

1600 rpm: 5 kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6, 2016, 5:29 AM





 



















I bought my boat several months

ago. Boat was made in 2002, she has 75 HP Yanmar engine.



I decide to establish my boat performance characteristic.
I

tested boat speed at three different engine RPM. My test

results are as follows:

Engine RPM           Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was taking from GPS at maximum stable

speed.



I wonder if those results are as good as expected or not.
Do

we have any similar data from Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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sailormon <kimberlite@...>
 

Alexandre ,

Your Volvo will go to 4500 rpm??

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 06, 2016 8:28 AM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000

 

 

My boat was definitely fully loaded too...

If you look at the specs, the Volvo TMS 22 P is rated for 78 HP, but only if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800 rpm 40 hp.

Sincerely, Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM, "Alexandre Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>
wrote:















 









Good morning Vladimir,

My speeds were similar, using the Volvo TMD 22.



1400 rpm 4.5 kt

1600 rpm: 5 kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@...
[amelyachtowners] <amelyachtowners@...>
wrote:



Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@...

Date: Wednesday, January 6, 2016, 5:29 AM





 



















I bought my boat several months

ago. Boat was made in 2002, she has 75 HP Yanmar engine.



I decide to establish my boat performance characteristic.
I

tested boat speed at three different engine RPM. My test

results are as follows:

Engine RPM           Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was taking from GPS at maximum stable

speed.



I wonder if those results are as good as expected or not.
Do

we have any similar data from Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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amelforme
 

Vladimir, how many RPM will your engine develop at maximum and what speed does the boat achieve? What propellor are you using?

Joel F. Potter
THE EXPERIENCED AMEL GUY
954-812-2485

On Jan 6, 2016, at 8:15 AM, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

 

How many HP in your engine?
My boat was fully loaded.

On Jan 6, 2016 7:32 AM, "Alexandre Uster von Baar uster@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 5:29 AM


 









I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM           Boat speed in
KN

1500.                                 
4.7

2000.                                 
6.3

2500.                                 
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345












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Alexandre Uster von Baar
 

Hello Eric

No, no, I wish.
2400 rpm is the maximum ( auto prop rebuild and recent antifouling).

The specification of the Volvo TMD 22 P says 78 HP at 4500 rpm.
I can post the info if interested.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos




--------------------------------------------

On Wed, 1/6/16, sailormon kimberlite@optonline.net [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:31 AM


 









Alexandre
,Your Volvo will go to
4500 rpm??Fair
WindsEricKimberlite Amel Super
Maramu #376  
 From: amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]
Sent: Wednesday, January 06, 2016 8:28
AM
To:
amelyachtowners@yahoogroups.com
Subject: Re: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000    My boat was definitely fully
loaded too...

If you look
at the specs, the Volvo TMS 22 P is rated for 78 HP, but
only if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800 rpm
40 hp.

Sincerely,
Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:

Subject: Re: [Amel
Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM,
"Alexandre Uster von Baar uster@rocketmail.com
[amelyachtowners]" <amelyachtowners@yahoogroups.com>
wrote:















 









Good morning
Vladimir,

My speeds were
similar, using the Volvo TMD 22.



1400 rpm 4.5
kt

1600 rpm: 5 kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos
Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir
Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: [Amel Yacht Owners]
Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6,
2016, 5:29 AM





 



















I bought my
boat several months

ago.
Boat was made in 2002, she has 75 HP Yanmar engine.



I decide to establish my boat performance
characteristic.
I

tested boat speed at three different engine
RPM. My test

results are as
follows:

Engine
RPM           Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was taking
from GPS at maximum stable

speed.



I wonder if those results are
as good as expected or not.
Do

we have any similar data from
Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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sailormon <kimberlite@...>
 

Hi Alexandre ,

I saw that and thought you purchased the very optional Jet Pack.

Fair Winds

Eric

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Wednesday, January 06, 2016 8:52 AM
To: amelyachtowners@...
Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000

 

 

Hello Eric

No, no, I wish.
2400 rpm is the maximum ( auto prop rebuild and recent antifouling).

The specification of the Volvo TMD 22 P says 78 HP at 4500 rpm.
I can post the info if interested.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos

--------------------------------------------
On Wed, 1/6/16, sailormon kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 7:31 AM


 









Alexandre
,Your Volvo will go to
4500 rpm??Fair
WindsEricKimberlite Amel Super
Maramu #376  
 From: amelyachtowners@...
[mailto:amelyachtowners@...]
Sent: Wednesday, January 06, 2016 8:28
AM
To:
amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000    My boat was definitely fully
loaded too...

If you look
at the specs, the Volvo TMS 22 P is rated for 78 HP, but
only if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800 rpm
40 hp.

Sincerely,
Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@...
[amelyachtowners] <amelyachtowners@...>
wrote:

Subject: Re: [Amel
Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM,
"Alexandre Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>
wrote:















 









Good morning
Vladimir,

My speeds were
similar, using the Volvo TMD 22.



1400 rpm 4.5
kt

1600 rpm: 5 kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos
Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir
Sonsev sonsev52@...
[amelyachtowners] <amelyachtowners@...>
wrote:



Subject: [Amel Yacht Owners]
Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@...

Date: Wednesday, January 6,
2016, 5:29 AM





 



















I bought my
boat several months

ago.
Boat was made in 2002, she has 75 HP Yanmar engine.



I decide to establish my boat performance
characteristic.
I

tested boat speed at three different engine
RPM. My test

results are as
follows:

Engine
RPM           Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was taking
from GPS at maximum stable

speed.



I wonder if those results are
as good as expected or not.
Do

we have any similar data from
Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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Alexandre Uster von Baar
 

Only came on later models !!!

I keep forgetting, hope you have a great new year and that 2016 will bring good health, happiness, success, love and all you can wish for!
Alexandre



--------------------------------------------

On Wed, 1/6/16, sailormon kimberlite@optonline.net [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:58 AM


 









Hi Alexandre
,I saw that and thought
you purchased the very optional Jet Pack.Fair
WindsEric  
 From: amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]
Sent: Wednesday, January 06, 2016 8:52
AM
To:
amelyachtowners@yahoogroups.com
Subject: RE: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000    Hello Eric

No, no, I wish.
2400 rpm is the maximum ( auto prop rebuild and
recent antifouling).

The
specification of the Volvo TMD 22 P says 78 HP at 4500 rpm.

I can post the info if interested.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven
Marina, Turks & Caicos

--------------------------------------------
On Wed, 1/6/16, sailormon kimberlite@optonline.net
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:

Subject: RE: [Amel
Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:31 AM


 









Alexandre
,Your Volvo will go
to
4500 rpm??Fair
WindsEricKimberlite Amel Super
Maramu #376  
 From: amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]

Sent: Wednesday, January 06, 2016 8:28
AM
To:
amelyachtowners@yahoogroups.com
Subject: Re: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000    My boat was definitely fully
loaded too...

If you look
at the specs, the
Volvo TMS 22 P is rated for 78 HP, but
only
if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800
rpm
40 hp.

Sincerely,
Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:

Subject: Re: [Amel
Yacht
Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM,
"Alexandre Uster von Baar uster@rocketmail.com
[amelyachtowners]" <amelyachtowners@yahoogroups.com>
wrote:















 









Good
morning
Vladimir,

My speeds were
similar, using
the Volvo TMD 22.



1400 rpm 4.5
kt

1600 rpm: 5
kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos
Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir
Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: [Amel Yacht
Owners]
Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6,
2016, 5:29 AM





 



















I bought my
boat several
months

ago.
Boat was made in 2002, she has 75 HP Yanmar
engine.



I decide to establish my boat
performance
characteristic.
I

tested boat
speed at three different engine
RPM. My
test

results are as
follows:

Engine
RPM          
Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was
taking
from GPS at maximum stable

speed.



I wonder if
those results are
as good as expected or
not.
Do

we
have any similar data from
Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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sailormon <kimberlite@...>
 

I am off to the airport in an hour to go to Kimberlite in Colombia. It is Cold up here.

Fair Winds

Eric





From: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com]
Sent: Wednesday, January 06, 2016 9:05 AM
To: amelyachtowners@yahoogroups.com
Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000





Only came on later models !!!

I keep forgetting, hope you have a great new year and that 2016 will bring good health, happiness, success, love and all you can wish for!
Alexandre

--------------------------------------------
On Wed, 1/6/16, sailormon kimberlite@optonline.net [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:58 AM












Hi Alexandre
,I saw that and thought
you purchased the very optional Jet Pack.Fair
WindsEric
From: amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]
Sent: Wednesday, January 06, 2016 8:52
AM
To:
amelyachtowners@yahoogroups.com
Subject: RE: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000 Hello Eric

No, no, I wish.
2400 rpm is the maximum ( auto prop rebuild and
recent antifouling).

The
specification of the Volvo TMD 22 P says 78 HP at 4500 rpm.

I can post the info if interested.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven
Marina, Turks & Caicos

--------------------------------------------
On Wed, 1/6/16, sailormon kimberlite@optonline.net
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:

Subject: RE: [Amel
Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:31 AM












Alexandre
,Your Volvo will go
to
4500 rpm??Fair
WindsEricKimberlite Amel Super
Maramu #376
From: amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]

Sent: Wednesday, January 06, 2016 8:28
AM
To:
amelyachtowners@yahoogroups.com
Subject: Re: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000 My boat was definitely fully
loaded too...

If you look
at the specs, the
Volvo TMS 22 P is rated for 78 HP, but
only
if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800
rpm
40 hp.

Sincerely,
Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:

Subject: Re: [Amel
Yacht
Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@yahoogroups.com
Date: Wednesday, January 6, 2016, 7:15 AM












How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM,
"Alexandre Uster von Baar uster@rocketmail.com
[amelyachtowners]" <amelyachtowners@yahoogroups.com>
wrote:

























Good
morning
Vladimir,

My speeds were
similar, using
the Volvo TMD 22.



1400 rpm 4.5
kt

1600 rpm: 5
kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos
Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir
Sonsev sonsev52@gmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: [Amel Yacht
Owners]
Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6,
2016, 5:29 AM

























I bought my
boat several
months

ago.
Boat was made in 2002, she has 75 HP Yanmar
engine.



I decide to establish my boat
performance
characteristic.
I

tested boat
speed at three different engine
RPM. My
test

results are as
follows:

Engine
RPM
Boat speed in

KN



1500.

4.7



2000.

6.3



2500.

7.5

Boat speed test minimised current or wind

effects. The speed was
taking
from GPS at maximum stable

speed.



I wonder if
those results are
as good as expected or
not.
Do

we
have any similar data from
Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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karkauai
 

Alex,
Here's my take on low rpm.  This is a chronic problem for many SMs powered with ~75HP engines.
After I spent thousands of $ on mechanics, new turbo, testing fuel pump and injectors, compression check, timing checked (the only thing I didn't do was service the AutoProp)...., I got the serial number off of the Autoprop and called Bruntons.  They said it was the prop they recommend for the SM with a 100HP Yanmar.
A good prop shop in Norfolk tested my spare fixed prop and said it was also over sized and over pitched for my boat with 78 HP Volvo.

With maximum rpm of 2400...
Try putting your spare fixed prop on and see what you get.  If still inadequate rpm, have the spare prop size/pitch tested and compared against what is calculated/recommended for your boat/engine.

If there's nothing wrong with the engine, the bottom and prop are clean, and the prop has been recently serviced, there is likely to be a buildup of carbon in your turbo that needs to be addressed.  (Removed and cleaned regularly.)  If it is left unaddressed, it will eventually need to be replaced, at significant cost.

If all indications are that you are over-propped, consider trying a prop that is pitched for your boat/load/engine per calculations by a good prop shop.  When I had the same problem with my 78hp Volvo, I finally had my spare fixed prop repitched, and got 3200 rpm under load.

I know many Amel owners are skeptical about this, believing that there is still something else going on that is responsible for your low rpm.  I'm convinced that my original AutoProp and spare fixed prop were not matched to my boat with 78HP Volvo TMD22.  It resulted in replacing the turbo twice in less than 5000 engine hours, and may have been a contributing factor in the eventual cracked block that killed the engine for good.

I still have the spare prop that was cut down and repitched according to prop shop calculations if you would like to try it.  I'd be happy to let you borrow it if we can find a time/place to do it.  It is now under propped for my new 110HO Yanmar, so if you (or anyone else) wants to buy it at a good price, I'll be happy to ship it to you.

Steady as she goes,
Kent
SM243
Kristy






On Jan 6, 2016, at 8:51 AM, Alexandre Uster von Baar uster@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hello Eric

No, no, I wish.
2400 rpm is the maximum ( auto prop rebuild and recent antifouling).

The specification of the Volvo TMD 22 P says 78 HP at 4500 rpm.
I can post the info if interested.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos

--------------------------------------------
On Wed, 1/6/16, sailormon kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 7:31 AM


 









Alexandre
,Your Volvo will go to
4500 rpm??Fair
WindsEricKimberlite Amel Super
Maramu #376  
 From: amelyachtowners@...
[mailto:amelyachtowners@...]
Sent: Wednesday, January 06, 2016 8:28
AM
To:
amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Engine
RPM vs Boat speed for Amel-Super-Maramu
2000    My boat was definitely fully
loaded too...

If you look
at the specs, the Volvo TMS 22 P is rated for 78 HP, but
only if you reach 4500 rpm... which we can't....
So at 1500 rpm it is about 30 HP, at 1800 rpm
40 hp.

Sincerely,
Alexandre

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@...
[amelyachtowners] <amelyachtowners@...>
wrote:

Subject: Re: [Amel
Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu
2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 7:15 AM


 









How many HP in your engine?

My boat was fully loaded.
On Jan 6, 2016 7:32
AM,
"Alexandre Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>
wrote:















 









Good morning
Vladimir,

My speeds were
similar, using the Volvo TMD 22.



1400 rpm 4.5
kt

1600 rpm: 5 kt

1800 rpm 5.5 kt



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos
Islands



--------------------------------------------

On Wed, 1/6/16, Vladimir
Sonsev sonsev52@...
[amelyachtowners] <amelyachtowners@...>
wrote:



Subject: [Amel Yacht Owners]
Engine RPM vs Boat speed for
Amel-Super-Maramu 2000

To: amelyachtowners@...

Date: Wednesday, January 6,
2016, 5:29 AM





 



















I bought my
boat several months

ago.
Boat was made in 2002, she has 75 HP Yanmar engine.



I decide to establish my boat performance
characteristic.
I

tested boat speed at three different engine
RPM. My test

results are as
follows:

Engine
RPM           Boat speed in

KN



1500.                                 

4.7



2000.                                 

6.3



2500.                                 

7.5

Boat speed test minimised current or wind

effects. The speed was taking
from GPS at maximum stable

speed.



I wonder if those results are
as good as expected or not.
Do

we have any similar data from
Amel?

Vladimir Sonsev



S/V Life is Good



MS345

























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Alexandre Uster von Baar
 

Good evening Kent,

I remember reading your writing about the oversize prop… When last winter I was in Fort Lauderdale for repair and maintenance, had new turbo installed, antifouling, auto prop prop rebuild, etc. and still 2400 rpm.
I unfortunately run out of time to try to put the fix prop, etc. but I still have all your writing.

But personally I am fine with the situation and mostly motor at 1600 rpm. I only use the engine when there is not enough wind to sail (less than 10 kt apparent).
Once in a while I run for a few minutes at 90% of power to help clearing the exhaust, meaning that I increase the throttle as long as the rpm increase, when they stop increasing, I then was a little on the throttle to see a 100 decrease on the rpm, this way, I know I am not putting unnecessary stress on the engine.

Therefore, if/when we met, I would like to take your offer on borrowing the prop!
Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina




--------------------------------------------

On Wed, 1/6/16, Kent Robertson karkauai@yahoo.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: "amelyachtowners@yahoogroups.com" <amelyachtowners@yahoogroups.com>
Date: Wednesday, January 6, 2016, 1:52 PM


 









Alex,Here's my take on low
rpm.  This is a chronic problem for many SMs powered
with ~75HP engines.After I spent thousands
of $ on mechanics, new turbo, testing fuel pump and
injectors, compression check, timing checked (the only thing
I didn't do was service the AutoProp)...., I got the
serial number off of the Autoprop and called Bruntons.
 They said it was the prop they recommend for the SM with a
100HP Yanmar.A good prop shop in Norfolk tested
my spare fixed prop and said it was also over sized and over
pitched for my boat with 78 HP Volvo.
With maximum rpm of
2400...Try putting your spare fixed prop on and
see what you get.  If still inadequate rpm, have the spare
prop size/pitch tested and compared against what is
calculated/recommended for your boat/engine.
If there's nothing wrong with
the engine, the bottom and prop are clean, and the prop has
been recently serviced, there is likely to be a buildup of
carbon in your turbo that needs to be addressed.  (Removed
and cleaned regularly.)  If it is left unaddressed, it will
eventually need to be replaced, at significant
cost.
If all
indications are that you are over-propped, consider trying a
prop that is pitched for your boat/load/engine per
calculations by a good prop shop.  When I had the same
problem with my 78hp Volvo, I finally had my spare fixed
prop repitched, and got 3200 rpm under load.
I know many Amel owners are
skeptical about this, believing that there is still
something else going on that is responsible for your low
rpm.  I'm convinced that my original AutoProp and spare
fixed prop were not matched to my boat with 78HP Volvo
TMD22.  It resulted in replacing the turbo twice in less
than 5000 engine hours, and may have been a contributing
factor in the eventual cracked block that killed the engine
for good.
I still have
the spare prop that was cut down and repitched according to
prop shop calculations if you would like to try it.
 I'd be happy to let you borrow it if we can find a
time/place to do it.  It is now under propped for my new
110HO Yanmar, so if you (or anyone else) wants to buy it at
a good price, I'll be happy to ship it to
you.
Steady as she
goes,KentSM243Kristy
On Jan 6, 2016, at 8:51 AM, Alexandre Uster von
Baar uster@rocketmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:
















 






Hello Eric



No, no, I wish.

2400 rpm is the maximum ( auto prop rebuild and recent
antifouling).



The specification of the Volvo TMD 22 P says 78 HP at 4500
rpm.

I can post the info if interested.



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos



--------------------------------------------

On Wed, 1/6/16, sailormon kimberlite@optonline.net
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed
for Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6, 2016, 7:31 AM





 



















Alexandre

,Your Volvo will go to

4500 rpm??Fair

WindsEricKimberlite Amel Super

Maramu #376  

 From: amelyachtowners@yahoogroups.com

[mailto:amelyachtowners@yahoogroups.com]


Sent: Wednesday, January 06, 2016 8:28

AM

To:

amelyachtowners@yahoogroups.com

Subject: Re: [Amel Yacht Owners] Engine

RPM vs Boat speed for Amel-Super-Maramu

2000    My boat was definitely fully

loaded too...



If you look

at the specs, the Volvo TMS 22 P is rated for 78 HP, but

only if you reach 4500 rpm... which we can't....

So at 1500 rpm it is about 30 HP, at 1800 rpm

40 hp.



Sincerely,

Alexandre



--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:



Subject: Re: [Amel

Yacht Owners] Engine RPM vs Boat speed for
Amel-Super-Maramu

2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6, 2016, 7:15 AM





 



















How many HP in your engine?



My boat was fully loaded.

On Jan 6, 2016 7:32

AM,

"Alexandre Uster von Baar uster@rocketmail.com

[amelyachtowners]" <amelyachtowners@yahoogroups.com>

wrote:































 



















Good morning

Vladimir,



My speeds were

similar, using the Volvo TMD 22.







1400 rpm 4.5

kt



1600 rpm: 5 kt



1800 rpm 5.5 kt







Sincerely, Alexandre



SM2K #289 NIKIMAT



Blue Haven Marina, Turks & Caicos

Islands







--------------------------------------------



On Wed, 1/6/16, Vladimir

Sonsev sonsev52@gmail.com

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:







Subject: [Amel Yacht Owners]

Engine RPM vs Boat speed for

Amel-Super-Maramu 2000



To: amelyachtowners@yahoogroups.com



Date: Wednesday, January 6,

2016, 5:29 AM











 







































I bought my

boat several months



ago.

Boat was made in 2002, she has 75 HP Yanmar engine.







I decide to establish my boat performance

characteristic.

I



tested boat speed at three different engine

RPM. My test



results are as

follows:



Engine

RPM           Boat speed in



KN







1500.                                 



4.7







2000.                                 



6.3







2500.                                 



7.5



Boat speed test minimised current or wind



effects. The speed was taking

from GPS at maximum stable



speed.







I wonder if those results are

as good as expected or not.

Do



we have any similar data from

Amel?



Vladimir Sonsev







S/V Life is Good







MS345



















































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karkauai
 

I'd like to see what kind of rpm you would get, Alex. Hope we get to try it some time.

I think you will still have carbon buildup in your turbo and exhaust elbow if 2400 is your max rpm. Running at 40-50% of max rpm most of the time isn't what your diesel likes. My Yanmar info says maximum efficiency is 3/4 of the maximum predicted rpm.

How many hours on your engine now? If still fairly low and you've had to replace the turbo, that's probably why.

Kent

On Jan 6, 2016, at 6:34 PM, Alexandre Uster von Baar uster@rocketmail.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Good evening Kent,

I remember reading your writing about the oversize prop… When last winter I was in Fort Lauderdale for repair and maintenance, had new turbo installed, antifouling, auto prop prop rebuild, etc. and still 2400 rpm.
I unfortunately run out of time to try to put the fix prop, etc. but I still have all your writing.

But personally I am fine with the situation and mostly motor at 1600 rpm. I only use the engine when there is not enough wind to sail (less than 10 kt apparent).
Once in a while I run for a few minutes at 90% of power to help clearing the exhaust, meaning that I increase the throttle as long as the rpm increase, when they stop increasing, I then was a little on the throttle to see a 100 decrease on the rpm, this way, I know I am not putting unnecessary stress on the engine.

Therefore, if/when we met, I would like to take your offer on borrowing the prop!
Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina

--------------------------------------------
On Wed, 1/6/16, Kent Robertson karkauai@yahoo.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: "amelyachtowners@yahoogroups.com" <amelyachtowners@yahoogroups.com>
Date: Wednesday, January 6, 2016, 1:52 PM












Alex,Here's my take on low
rpm. This is a chronic problem for many SMs powered
with ~75HP engines.After I spent thousands
of $ on mechanics, new turbo, testing fuel pump and
injectors, compression check, timing checked (the only thing
I didn't do was service the AutoProp)...., I got the
serial number off of the Autoprop and called Bruntons.
They said it was the prop they recommend for the SM with a
100HP Yanmar.A good prop shop in Norfolk tested
my spare fixed prop and said it was also over sized and over
pitched for my boat with 78 HP Volvo.
With maximum rpm of
2400...Try putting your spare fixed prop on and
see what you get. If still inadequate rpm, have the spare
prop size/pitch tested and compared against what is
calculated/recommended for your boat/engine.
If there's nothing wrong with
the engine, the bottom and prop are clean, and the prop has
been recently serviced, there is likely to be a buildup of
carbon in your turbo that needs to be addressed. (Removed
and cleaned regularly.) If it is left unaddressed, it will
eventually need to be replaced, at significant
cost.
If all
indications are that you are over-propped, consider trying a
prop that is pitched for your boat/load/engine per
calculations by a good prop shop. When I had the same
problem with my 78hp Volvo, I finally had my spare fixed
prop repitched, and got 3200 rpm under load.
I know many Amel owners are
skeptical about this, believing that there is still
something else going on that is responsible for your low
rpm. I'm convinced that my original AutoProp and spare
fixed prop were not matched to my boat with 78HP Volvo
TMD22. It resulted in replacing the turbo twice in less
than 5000 engine hours, and may have been a contributing
factor in the eventual cracked block that killed the engine
for good.
I still have
the spare prop that was cut down and repitched according to
prop shop calculations if you would like to try it.
I'd be happy to let you borrow it if we can find a
time/place to do it. It is now under propped for my new
110HO Yanmar, so if you (or anyone else) wants to buy it at
a good price, I'll be happy to ship it to
you.
Steady as she
goes,KentSM243Kristy
On Jan 6, 2016, at 8:51 AM, Alexandre Uster von
Baar uster@rocketmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:























Hello Eric



No, no, I wish.

2400 rpm is the maximum ( auto prop rebuild and recent
antifouling).



The specification of the Volvo TMD 22 P says 78 HP at 4500
rpm.

I can post the info if interested.



Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina, Turks & Caicos



--------------------------------------------

On Wed, 1/6/16, sailormon kimberlite@optonline.net
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat speed
for Amel-Super-Maramu 2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6, 2016, 7:31 AM

























Alexandre

,Your Volvo will go to

4500 rpm??Fair

WindsEricKimberlite Amel Super

Maramu #376

From: amelyachtowners@yahoogroups.com

[mailto:amelyachtowners@yahoogroups.com]


Sent: Wednesday, January 06, 2016 8:28

AM

To:

amelyachtowners@yahoogroups.com

Subject: Re: [Amel Yacht Owners] Engine

RPM vs Boat speed for Amel-Super-Maramu

2000 My boat was definitely fully

loaded too...



If you look

at the specs, the Volvo TMS 22 P is rated for 78 HP, but

only if you reach 4500 rpm... which we can't....

So at 1500 rpm it is about 30 HP, at 1800 rpm

40 hp.



Sincerely,

Alexandre



--------------------------------------------

On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:



Subject: Re: [Amel

Yacht Owners] Engine RPM vs Boat speed for
Amel-Super-Maramu

2000

To: amelyachtowners@yahoogroups.com

Date: Wednesday, January 6, 2016, 7:15 AM

























How many HP in your engine?



My boat was fully loaded.

On Jan 6, 2016 7:32

AM,

"Alexandre Uster von Baar uster@rocketmail.com

[amelyachtowners]" <amelyachtowners@yahoogroups.com>

wrote:



















































Good morning

Vladimir,



My speeds were

similar, using the Volvo TMD 22.







1400 rpm 4.5

kt



1600 rpm: 5 kt



1800 rpm 5.5 kt







Sincerely, Alexandre



SM2K #289 NIKIMAT



Blue Haven Marina, Turks & Caicos

Islands







--------------------------------------------



On Wed, 1/6/16, Vladimir

Sonsev sonsev52@gmail.com

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:







Subject: [Amel Yacht Owners]

Engine RPM vs Boat speed for

Amel-Super-Maramu 2000



To: amelyachtowners@yahoogroups.com



Date: Wednesday, January 6,

2016, 5:29 AM



















































I bought my

boat several months



ago.

Boat was made in 2002, she has 75 HP Yanmar engine.







I decide to establish my boat performance

characteristic.

I



tested boat speed at three different engine

RPM. My test



results are as

follows:



Engine

RPM Boat speed in



KN







1500.



4.7







2000.



6.3







2500.



7.5



Boat speed test minimised current or wind



effects. The speed was taking

from GPS at maximum stable



speed.







I wonder if those results are

as good as expected or not.

Do



we have any similar data from

Amel?



Vladimir Sonsev







S/V Life is Good







MS345



















































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Alexandre Uster von Baar
 

Good morning Kent,

Less than 5000 hours and the turbo was changed in 2012 and 2015…
The exhaust elbow as well…

Personally I don’t understand the logic in putting a turbo on a sailing vessel… wish I had a normally aspirated engine…

I am sure the issue is the same as what you had. Also (the boat) being overweight doesn’t help…

Alexandre



--------------------------------------------

On Wed, 1/6/16, Kent Robertson karkauai@yahoo.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: "amelyachtowners@yahoogroups.com" <amelyachtowners@yahoogroups.com>
Date: Wednesday, January 6, 2016, 7:20 PM


 









I'd like to see what kind of rpm you
would get, Alex.  Hope we get to try it some
time.
I think you will
still have carbon buildup in your turbo and exhaust elbow if
2400 is your max rpm.  Running at 40-50% of max rpm most of
the time isn't what your diesel likes.  My Yanmar info
says maximum efficiency is 3/4 of the maximum predicted
rpm.
How many hours on
your engine now?  If still fairly low and you've had to
replace the turbo, that's probably why.
Kent
On Jan 6, 2016, at 6:34 PM, Alexandre Uster von
Baar uster@rocketmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:
















 






Good evening Kent,



I remember reading your writing about the oversize prop…
When last winter I was in Fort Lauderdale for repair and
maintenance, had new turbo installed, antifouling, auto prop
prop rebuild, etc. and still 2400 rpm.

I unfortunately run out of time to try to put the fix prop,
etc. but I still have all your writing.



But personally I am fine with the situation and mostly motor
at 1600 rpm. I only use the engine when there is not enough
wind to sail (less than 10 kt apparent).

Once in a while I run for a few minutes at 90% of power to
help clearing the exhaust, meaning that I increase the
throttle as long as the rpm increase, when they stop
increasing, I then was a little on the throttle to see a 100
decrease on the rpm, this way, I know I am not putting
unnecessary stress on the engine.



Therefore, if/when we met, I would like to take your offer
on borrowing the prop!

Sincerely, Alexandre

SM2K #289 NIKIMAT

Blue Haven Marina



--------------------------------------------

On Wed, 1/6/16, Kent Robertson karkauai@yahoo.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:



Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed
for Amel-Super-Maramu 2000

To: "amelyachtowners@yahoogroups.com"
<amelyachtowners@yahoogroups.com>

Date: Wednesday, January 6, 2016, 1:52 PM





 



















Alex,Here's my take on low

rpm.  This is a chronic problem for many SMs powered

with ~75HP engines.After I spent thousands

of $ on mechanics, new turbo, testing fuel pump and

injectors, compression check, timing checked (the only
thing

I didn't do was service the AutoProp)...., I got the

serial number off of the Autoprop and called Bruntons.

 They said it was the prop they recommend for the SM with
a

100HP Yanmar.A good prop shop in Norfolk tested

my spare fixed prop and said it was also over sized and
over

pitched for my boat with 78 HP Volvo.

With maximum rpm of

2400...Try putting your spare fixed prop on and

see what you get.  If still inadequate rpm, have the
spare

prop size/pitch tested and compared against what is

calculated/recommended for your boat/engine.

If there's nothing wrong with

the engine, the bottom and prop are clean, and the prop
has

been recently serviced, there is likely to be a buildup
of

carbon in your turbo that needs to be addressed.
 (Removed

and cleaned regularly.)  If it is left unaddressed, it
will

eventually need to be replaced, at significant

cost.

If all

indications are that you are over-propped, consider trying
a

prop that is pitched for your boat/load/engine per

calculations by a good prop shop.  When I had the same

problem with my 78hp Volvo, I finally had my spare fixed

prop repitched, and got 3200 rpm under load.

I know many Amel owners are

skeptical about this, believing that there is still

something else going on that is responsible for your low

rpm.  I'm convinced that my original AutoProp and
spare

fixed prop were not matched to my boat with 78HP Volvo

TMD22.  It resulted in replacing the turbo twice in
less

than 5000 engine hours, and may have been a contributing

factor in the eventual cracked block that killed the
engine

for good.

I still have

the spare prop that was cut down and repitched according
to

prop shop calculations if you would like to try it.

 I'd be happy to let you borrow it if we can find a

time/place to do it.  It is now under propped for my
new

110HO Yanmar, so if you (or anyone else) wants to buy it
at

a good price, I'll be happy to ship it to

you.

Steady as she

goes,KentSM243Kristy
On Jan 6, 2016, at 8:51 AM, Alexandre Uster von

Baar uster@rocketmail.com

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:

































 













Hello Eric







No, no, I wish.



2400 rpm is the maximum ( auto prop rebuild and recent

antifouling).







The specification of the Volvo TMD 22 P says 78 HP at
4500

rpm.



I can post the info if interested.







Sincerely, Alexandre



SM2K #289 NIKIMAT



Blue Haven Marina, Turks & Caicos







--------------------------------------------



On Wed, 1/6/16, sailormon kimberlite@optonline.net

[amelyachtowners] <amelyachtowners@yahoogroups.com>

wrote:







Subject: RE: [Amel Yacht Owners] Engine RPM vs Boat
speed

for Amel-Super-Maramu 2000



To: amelyachtowners@yahoogroups.com



Date: Wednesday, January 6, 2016, 7:31 AM











 







































Alexandre



,Your Volvo will go to



4500 rpm??Fair



WindsEricKimberlite Amel Super



Maramu #376  



 From: amelyachtowners@yahoogroups.com



[mailto:amelyachtowners@yahoogroups.com]





Sent: Wednesday, January 06, 2016 8:28



AM



To:



amelyachtowners@yahoogroups.com



Subject: Re: [Amel Yacht Owners] Engine



RPM vs Boat speed for Amel-Super-Maramu



2000    My boat was definitely fully



loaded too...







If you look



at the specs, the Volvo TMS 22 P is rated for 78 HP,
but



only if you reach 4500 rpm... which we can't....



So at 1500 rpm it is about 30 HP, at 1800 rpm



40 hp.







Sincerely,



Alexandre







--------------------------------------------



On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com



[amelyachtowners] <amelyachtowners@yahoogroups.com>



wrote:







Subject: Re: [Amel



Yacht Owners] Engine RPM vs Boat speed for

Amel-Super-Maramu



2000



To: amelyachtowners@yahoogroups.com



Date: Wednesday, January 6, 2016, 7:15 AM











 







































How many HP in your engine?







My boat was fully loaded.



On Jan 6, 2016 7:32



AM,



"Alexandre Uster von Baar uster@rocketmail.com



[amelyachtowners]" <amelyachtowners@yahoogroups.com>



wrote:































































 







































Good morning



Vladimir,







My speeds were



similar, using the Volvo TMD 22.















1400 rpm 4.5



kt







1600 rpm: 5 kt







1800 rpm 5.5 kt















Sincerely, Alexandre







SM2K #289 NIKIMAT







Blue Haven Marina, Turks & Caicos



Islands















--------------------------------------------







On Wed, 1/6/16, Vladimir



Sonsev sonsev52@gmail.com



[amelyachtowners] <amelyachtowners@yahoogroups.com>



wrote:















Subject: [Amel Yacht Owners]



Engine RPM vs Boat speed for



Amel-Super-Maramu 2000







To: amelyachtowners@yahoogroups.com







Date: Wednesday, January 6,



2016, 5:29 AM























 















































































I bought my



boat several months







ago.



Boat was made in 2002, she has 75 HP Yanmar engine.















I decide to establish my boat performance



characteristic.



I







tested boat speed at three different engine



RPM. My test







results are as



follows:







Engine



RPM           Boat speed in







KN
















1500.                                 







4.7
















2000.                                 







6.3
















2500.                                 







7.5







Boat speed test minimised current or wind







effects. The speed was taking



from GPS at maximum stable







speed.















I wonder if those results are



as good as expected or not.



Do







we have any similar data from



Amel?







Vladimir Sonsev















S/V Life is Good















MS345







































































































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VLADIMIR SONSEV
 

Joel,

Max RPM is 2900 at 8.2 kn speed.
Is this OK?

On Jan 6, 2016 8:43 AM, "Joel jfpottercys@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Vladimir, how many RPM will your engine develop at maximum and what speed does the boat achieve? What propellor are you using?

Joel F. Potter
THE EXPERIENCED AMEL GUY

On Jan 6, 2016, at 8:15 AM, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

 

How many HP in your engine?
My boat was fully loaded.

On Jan 6, 2016 7:32 AM, "Alexandre Uster von Baar uster@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@...
Date: Wednesday, January 6, 2016, 5:29 AM


 









I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM           Boat speed in
KN

1500.                                 
4.7

2000.                                 
6.3

2500.                                 
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345












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amelforme
 

Vladimir, with your 75 H.P. engine, if you have a Max-Prop, that speed and RPM are about right, well within the range. If you have an Auto-Prop, the RPM are about 600 slower and that speed is a bit slower than normal by about ½ a knot. All things considered, nothing for concern and within normal ‘range’.



However, keep this in mind. In 35 years of selling used Amel’s by the hundreds, I have NEVER seen a tachometer on an Amel , or any other boat for that matter, after being tested with a certified pulse/stroboscopic tachometer, where the tachometer on the boat was less than 100 RPM too fast or too slow, and many times more than 100 RPM, sometimes a lot more. Tachometers are notoriously inaccurate, especially modern ones which take their information from an electrical pulse from the alternator or other source rather than an engine to tachometer rotating cable. If you are using accurate tide charts and GPS and something does not add up, have your tachometer tested, it’s inexpensive and easy to do so. It is often the culprit.



Have fun with your Amel, Joel



Joel F. Potter/Cruising Yacht Specialist LLC

THE EXPERIENCED AMEL GUY

954 462 5869 office

954 812 2485 cell







From: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com]
Sent: Sunday, January 10, 2016 3:27 PM
To: amelyachtowners@yahoogroups.com
Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000





Joel,

Max RPM is 2900 at 8.2 kn speed.
Is this OK?

On Jan 6, 2016 8:43 AM, "Joel jfpottercys@att.net <mailto:jfpottercys@att.net> [amelyachtowners]" <amelyachtowners@yahoogroups.com <mailto:amelyachtowners@yahoogroups.com> > wrote:



Vladimir, how many RPM will your engine develop at maximum and what speed does the boat achieve? What propellor are you using?

Joel F. Potter

THE EXPERIENCED AMEL GUY

954-812-2485 <tel:954-812-2485>


On Jan 6, 2016, at 8:15 AM, Vladimir Sonsev sonsev52@gmail.com <mailto:sonsev52@gmail.com> [amelyachtowners] <amelyachtowners@yahoogroups.com <mailto:amelyachtowners@yahoogroups.com> > wrote:



How many HP in your engine?
My boat was fully loaded.

On Jan 6, 2016 7:32 AM, "Alexandre Uster von Baar uster@rocketmail.com <mailto:uster@rocketmail.com> [amelyachtowners]" <amelyachtowners@yahoogroups.com <mailto:amelyachtowners@yahoogroups.com> > wrote:



Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@gmail.com <mailto:sonsev52@gmail.com> [amelyachtowners] <amelyachtowners@yahoogroups.com <mailto:amelyachtowners@yahoogroups.com> > wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@yahoogroups.com <mailto:amelyachtowners@yahoogroups.com>
Date: Wednesday, January 6, 2016, 5:29 AM












I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM Boat speed in
KN

1500.
4.7

2000.
6.3

2500.
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345












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VLADIMIR SONSEV
 

Joel,
Thanks a lot. I have an original Autoprop.
I will check my tachometer.
I appreciate your help.

On Jan 10, 2016 7:44 PM, "'Joel Potter' jfpottercys@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Vladimir, with your 75 H.P. engine, if you have a Max-Prop, that speed and RPM are about right, well within the range. If you have an Auto-Prop, the RPM are about 600 slower and that speed is a bit slower than normal by about ½ a knot. All things considered, nothing for concern and within normal ‘range’.

However, keep this in mind. In 35 years of selling used Amel’s by the hundreds, I have NEVER seen a tachometer on an Amel , or any other boat for that matter, after being tested with a certified pulse/stroboscopic tachometer, where the tachometer on the boat was less than 100 RPM too fast or too slow, and many times more than 100 RPM, sometimes a lot more. Tachometers are notoriously inaccurate, especially modern ones which take their information from an electrical pulse from the alternator or other source rather than an engine to tachometer rotating cable. If you are using accurate tide charts and GPS and something does not add up, have your tachometer tested, it’s inexpensive and easy to do so. It is often the culprit.

Have fun with your Amel, Joel

Joel F. Potter/Cruising Yacht Specialist LLC

THE EXPERIENCED AMEL GUY

954 462 5869 office

954 812 2485 cell

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Sunday, January 10, 2016 3:27 PM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000

Joel,

Max RPM is 2900 at 8.2 kn speed.
Is this OK?

On Jan 6, 2016 8:43 AM, "Joel jfpottercys@... jfpottercys@...> [amelyachtowners]" <amelyachtowners@... amelyachtowners@...> > wrote:

Vladimir, how many RPM will your engine develop at maximum and what speed does the boat achieve? What propellor are you using?

Joel F. Potter

THE EXPERIENCED AMEL GUY

954-812-2485 954-812-2485>

On Jan 6, 2016, at 8:15 AM, Vladimir Sonsev sonsev52@... sonsev52@...> [amelyachtowners] <amelyachtowners@... amelyachtowners@...> > wrote:

How many HP in your engine?
My boat was fully loaded.

On Jan 6, 2016 7:32 AM, "Alexandre Uster von Baar uster@... uster@...> [amelyachtowners]" <amelyachtowners@... amelyachtowners@...> > wrote:

Good morning Vladimir,
My speeds were similar, using the Volvo TMD 22.

1400 rpm 4.5 kt
1600 rpm: 5 kt
1800 rpm 5.5 kt

Sincerely, Alexandre
SM2K #289 NIKIMAT
Blue Haven Marina, Turks & Caicos Islands

--------------------------------------------
On Wed, 1/6/16, Vladimir Sonsev sonsev52@... sonsev52@...> [amelyachtowners] <amelyachtowners@... amelyachtowners@...> > wrote:

Subject: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2000
To: amelyachtowners@... amelyachtowners@...>
Date: Wednesday, January 6, 2016, 5:29 AM

I bought my boat several months
ago. Boat was made in 2002, she has 75 HP Yanmar engine.

I decide to establish my boat performance characteristic. I
tested boat speed at three different engine RPM. My test
results are as follows:
Engine RPM Boat speed in
KN

1500.
4.7

2000.
6.3

2500.
7.5
Boat speed test minimised current or wind
effects. The speed was taking from GPS at maximum stable
speed.

I wonder if those results are as good as expected or not. Do
we have any similar data from Amel?
Vladimir Sonsev

S/V Life is Good

MS345

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