Re: [Amel Yacht Owners] Engine RPM vs Boat speed for Amel-Super-Maramu 2,000


VLADIMIR SONSEV
 

I use original Autoprop. Previous owner told me that he never ran the boat at more than 2,000 RPM. I am very far from home (Annapolis MD) and I try to be very conservative.  I will run at full throttle later on closer to home.

On Jan 6, 2016 9:13 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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