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Silicone Bowthruster Seals Wanted !!

George Green
 

Does anyone have a set of seals available for  sale suitable for my SM2K ?
No rush. I will be in the USA  until end June and Greece for the rest of the year

Many thanks in advance

George
on COCO,  # 434
Re: Firefly Battery Update.

Porter McRoberts
 

Wow. Great Intel Bill. Thank you 

Makes one rethink lithium in light of the insurance issues.   Or at least consider the firefly a greatly improved bridge to wait for insurers to figure out the low risk reality of lithium. 


Appreciated, 
Porter McRoberts 
S/V IBIS A54-152
WhatsApp:+1 754 265 2206
Www.fouribis.net

On Feb 3, 2022, at 2:27 PM, Bill Kinney <cruisingconsulting@...> wrote:




We have had some pretty extensive experience with our Firefly batteries at this point.  We had a couple lumps and bumps in the road early on, but things now seem to have settled in to good smooth operation. One of the unusual things about using a Firefly battery is the procedure Firefly calls a “Restoration charge.” After an extended period of operating at partial state of charge, to restore full capacity the recommendation...



...perform the restoration charge: charge the G31 to 14.4V at 0.2C to 0.5C and continue to charge until the current drops to 0.5 A on the G31  and apply a float charge of 13.5V( for 24 hours. Fully discharge the battery to 10.5V, and then repeat the same charge cycle.

This is also the perfect time to actually measure the capacity of our batteries, and monitor their health since we are discharging them from 100% full to as close to 0% as you can get. For our battery bank we do this by turning on a 1000 Watt space heater, which pulls about 50 Amps out of our 480 Amp-hour battery bank draining them fully in a little under 10 hours.

 

For our 480 Amp-hour battery bank Firefly’s minimum recommended charger capacity is 96 Amps, and a maximum of 240 Amps, with an optimum target of 192 Amps.  Our DC generator puts out 150 Amps, and our shore power inverter/charger does 70 Amps.  

 

In Early October 2020 we installed our current set of Firefly batteries.  After installation, initial charging and testing we did a full ”restoration charge” bringing the batteries from 100% full, down to dead flat, and recharging at 200 Amps

 

Firefly’s current specification sheet for the G31 version of their batteries lists the C10 capacity as 448 Amp-hours.  Our first test in Oct 2020 came in at 454 Amp-hours. It seemed we were off to an excellent start.  Our batteries managed to supply about 1% above rated capacity.

 

In April 21 after 6 months of use, we again ran a full discharge test, and the result was 459 Amp-hours. Even better!  Obviously this was not a trend that could continue for long…

 

In Sep 21 after 10 months another test:  453 Amp-Hours.

 

Jan 22 at 15 months: 448 Amp Hours, right on the original rated nameplate capacity.

 

I do not have any feeling for how precise these numbers are.  Are they +/- 1% or 10%?  No idea.  The measurement is a bit dicey, since I certainly do not have laboratory grade control of the discharge rate.  So I can’t yet say if there is a real trend here or not.  But the (very!) good news for us is after 15 months of constant use our batteries test out right at the original manufacturer’s capacity specification, or a tiny bit better!

 

Considering that an inexpensive set of flooded lead acid batteries would be approaching the end of their useful life at this age, we count this as a total win.  Will these batteries last long enough to justify the additional cost?  Maybe.  Maybe not.  But they are certainly on the right track.

 

For the way we use our boat, the performance of these seems to be an excellent match. 


Bill Kinney
SM160, Harmonie
Hollywood, FL, USA
Firefly Battery Update.

Bill Kinney
 


We have had some pretty extensive experience with our Firefly batteries at this point.  We had a couple lumps and bumps in the road early on, but things now seem to have settled in to good smooth operation. One of the unusual things about using a Firefly battery is the procedure Firefly calls a “Restoration charge.” After an extended period of operating at partial state of charge, to restore full capacity the recommendation...



...perform the restoration charge: charge the G31 to 14.4V at 0.2C to 0.5C and continue to charge until the current drops to 0.5 A on the G31  and apply a float charge of 13.5V( for 24 hours. Fully discharge the battery to 10.5V, and then repeat the same charge cycle.

This is also the perfect time to actually measure the capacity of our batteries, and monitor their health since we are discharging them from 100% full to as close to 0% as you can get. For our battery bank we do this by turning on a 1000 Watt space heater, which pulls about 50 Amps out of our 480 Amp-hour battery bank draining them fully in a little under 10 hours.

 

For our 480 Amp-hour battery bank Firefly’s minimum recommended charger capacity is 96 Amps, and a maximum of 240 Amps, with an optimum target of 192 Amps.  Our DC generator puts out 150 Amps, and our shore power inverter/charger does 70 Amps.  

 

In Early October 2020 we installed our current set of Firefly batteries.  After installation, initial charging and testing we did a full ”restoration charge” bringing the batteries from 100% full, down to dead flat, and recharging at 200 Amps

 

Firefly’s current specification sheet for the G31 version of their batteries lists the C10 capacity as 448 Amp-hours.  Our first test in Oct 2020 came in at 454 Amp-hours. It seemed we were off to an excellent start.  Our batteries managed to supply about 1% above rated capacity.

 

In April 21 after 6 months of use, we again ran a full discharge test, and the result was 459 Amp-hours. Even better!  Obviously this was not a trend that could continue for long…

 

In Sep 21 after 10 months another test:  453 Amp-Hours.

 

Jan 22 at 15 months: 448 Amp Hours, right on the original rated nameplate capacity.

 

I do not have any feeling for how precise these numbers are.  Are they +/- 1% or 10%?  No idea.  The measurement is a bit dicey, since I certainly do not have laboratory grade control of the discharge rate.  So I can’t yet say if there is a real trend here or not.  But the (very!) good news for us is after 15 months of constant use our batteries test out right at the original manufacturer’s capacity specification, or a tiny bit better!

 

Considering that an inexpensive set of flooded lead acid batteries would be approaching the end of their useful life at this age, we count this as a total win.  Will these batteries last long enough to justify the additional cost?  Maybe.  Maybe not.  But they are certainly on the right track.

 

For the way we use our boat, the performance of these seems to be an excellent match. 


Bill Kinney
SM160, Harmonie
Hollywood, FL, USA
Re: Amel Maramu replacement waterlock

JB Duler
 

Richard, it may be simply catastrophic. Amel owners have lost their engine over saltwater back in the engine, especially during long downwind runs
--
John Bernard "JB" Duler
San Francisco
Meltem # 19, Western Med

Re: Fresh water tank pipe noise

Scott SV Tengah
 

I had that sound after the aft most water tank section on my 54 was cleaned. The copper pipe was pushed close to the vertical face of the tank by a monkey fisted boatyard worker during the cleaning process.

A little gentle bending got it far enough away that it doesn't touch anymore. 

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com
Re: Amel Maramu replacement waterlock

Richard May
 

Bill,
Interesting intel on the muffler.  Thank you.  The muffler I have also does not have a backflow preventer in it like the LSG models do.  Are there ever issues with seawater coming backwards in the systems?
--
Richard May
SM 477 Avogato

Re: DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

Danny and Yvonne SIMMS
 

Thanks JB. I'm not too worried. I just checked my spam folder.
Danny

On 02/02/2022 13:04 JB Duler <jbduler@...> wrote:


Danny, most of the time the problem is not at the source but at the reception.

I don't know what Bill is using as an email service (Amazon SES? Mailgun? Sengrid?). But it works very well.

Email is way more complex than we tend to think. And it works well most of the time.
Who is handling the email for the domain xtra.co.nz? It may have worked in the past but very few email providers (beyond Microsoft and Gmail) have been able to keep up with tech. Don't forget that they have now to deal with billions of spam emails and they do an excellent job.

A solution is maybe to open a different email like dannyYvonneSimms@...?
--
John Bernard "JB" Duler
San Francisco
Meltem # 19, Western Med

Re: Machining AMEL-specific tools in NZ (outhaul puller PLUS wrench for the rudder-post-packing nut)

Danny and Yvonne SIMMS
 

For the packing nut wrench how about get a piece of flat aluminum out of a engineers scrap bin and spend a  it of time with a cutting wheel on an angle grinder (or a hacksaw), finish it off with a file and sand paper. That's what I would do if my pipe wrench wasn't so effective.
Danny
SM 299
Ocean Pearl

On 02/02/2022 17:31 David Vogel <david.vogel@...> wrote:


QUICK UPDATE:

Only "official" quote I have been able to obtain thus far for a wrench, machined in SS308, has been over NZD150- (each, for a minimum production run of 4); so I am still researching you find a more acceptable alternative.

I will keep you posted. Thanks to all who have provided info and advice to date (not always seen via this forum).

BTW, I have paid for a CAD/CAM file, which may assist a production run.

Best,

David


Re: Bent pole hook

karkauai
 

Hi Eric.  It's the hook that hangs the outboard end of the whisker pole on the rail in preparation for deployment.  I posted a pic in my first post about it.

I really don't want to drill out the rivets , remove the outboard end fitting, and the line it is attached with.  Bending it in place is proving difficult, as it is very stiff and has a lot of curves.

Kent
SM243
Kristy

--
Kent & Iris
KRISTY
SM243
Re: Introduction

Herman Goverse
 

Hi Martijn,

Great plan. We have bought our SM this year and brought her to the Netherlands. If you want have a closer look at a SM and exchange stories you and the family are welcome to visit us in Medemblik. Just send me an email herman(at)sy-kolibri.com

Groet, Hella en Herman
--
SY-Kolibri - SM #174

Re: DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

Danny Simms
 

That's how I see it Bill.


Danny Simms


On Wed, 2 Feb 2022, 13:45 CW Bill Rouse, <brouse@...> wrote:
Our service used AWS.

The only issues we have is with certain ISPs. Optonline and Yahoo are historically the biggest problems.

Think about it. If over 1000 users do not have the problem you are experiencing, while you continue to have these issues, the probability is very high that the fault is on your side. 

Best,

CW Bill Rouse 
Amel Owners Yacht School
+1 832-380-4970 | brouse@...
720 Winnie, Galveston Island, Texas 77550 
www.AmelOwnersYachtSchool.com 
Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html


   

On Tue, Feb 1, 2022, 18:04 JB Duler <jbduler@...> wrote:
Danny, most of the time the problem is not at the source but at the reception.

I don't know what Bill is using as an email service (Amazon SES? Mailgun? Sengrid?). But it works very well.

Email is way more complex than we tend to think. And it works well most of the time.
Who is handling the email for the domain xtra.co.nz? It may have worked in the past but very few email providers (beyond Microsoft and Gmail) have been able to keep up with tech. Don't forget that they have now to deal with billions of spam emails and they do an excellent job.

A solution is maybe to open a different email like dannyYvonneSimms@...?
--
John Bernard "JB" Duler
San Francisco
Meltem # 19, Western Med

Re: DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

Danny Simms
 

Thanks JB. I am not too worried. I just check the spam.
Danny

Danny Simms


On Wed, 2 Feb 2022, 13:04 JB Duler, <jbduler@...> wrote:
Danny, most of the time the problem is not at the source but at the reception.

I don't know what Bill is using as an email service (Amazon SES? Mailgun? Sengrid?). But it works very well.

Email is way more complex than we tend to think. And it works well most of the time.
Who is handling the email for the domain xtra.co.nz? It may have worked in the past but very few email providers (beyond Microsoft and Gmail) have been able to keep up with tech. Don't forget that they have now to deal with billions of spam emails and they do an excellent job.

A solution is maybe to open a different email like dannyYvonneSimms@...?
--
John Bernard "JB" Duler
San Francisco
Meltem # 19, Western Med

Re: Bent pole hook

Eric Freedman <kimberlite@...>
 

Kent,

What hook are you talking about?

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: main@AmelYachtOwners.groups.io On Behalf Of Juan de Zulueta via groups.io
Sent: Wednesday, February 02, 2022 6:38 AM
To: main@amelyachtowners.groups.io
Subject: Re: [AmelYachtOwners] Bent pole hook

 

Hello,

 

I would go on shore to find a flat hard surface with a big hammer, a vice clamp and a torch to warm it if possible in order to try to unbend it.

 

I have done this recently…

 

Envoyé de mon iPhone



Le 1 févr. 2022 à 18:21, karkauai via groups.io <karkauai@...> a écrit :



Anyone have an idea how to put the bend back in this hook while in place on the pole?  I don't have a vice aboard.

 

I know there's a way, but haven't figured it out yet 

 

Thanks

Kent & Iris

Kristy

SM 243

Currently Georgetown, Exumasc


--
Kent & Iris

KRISTY

SM243


--
Juan de Zulueta
OPHELIE X
Super Maramu #32

Re: Machining AMEL-specific tools in NZ (outhaul puller PLUS wrench for the rudder-post-packing nut)

Eric Freedman <kimberlite@...>
 

David,
I cut the one I use out of 1/4-inch aluminum with a bandsaw. I used the nut as a template.
Attached is a photo , it is also in Bill's book. It took me about an hour to make , including a drill to make
The hole in the end of the handle. I used a grinder to smooth out the piece and a orbital sander to put the final finish on it.
Total time about one hour.
Fair Winds
Eric
Kimberlite Amel Super Maramu #376

-----Original Message-----
From: main@AmelYachtOwners.groups.io On Behalf Of David Vogel
Sent: Tuesday, February 01, 2022 11:32 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] Machining AMEL-specific tools in NZ (outhaul puller PLUS wrench for the rudder-post-packing nut)

QUICK UPDATE:

Only "official" quote I have been able to obtain thus far for a wrench, machined in SS308, has been over NZD150- (each, for a minimum production run of 4); so I am still researching you find a more acceptable alternative.

I will keep you posted. Thanks to all who have provided info and advice to date (not always seen via this forum).

BTW, I have paid for a CAD/CAM file, which may assist a production run.

Best,

David

Re: Strange plug on the front of my Keel (Maramu)

JB Duler
 

My guess is that a previous owner put a pile of gold coins there and put some fairing compound on the top :-)
--
John Bernard "JB" Duler
San Francisco
Meltem # 19, Western Med

Re: Strange plug on the front of my Keel (Maramu)

Chuck_Kim_Joy
 


If no one has answered yet that is 1 of 2 parts to your speed sensor system. Don't bury it fix it. They still sell them. 
All the best,
Chuck 
Joy 388
St.martin 

On Wed, Feb 2, 2022 at 12:18 PM Lance Leonard <Elscubano@...> wrote:
The yard found it buried in fairing compound when they soda blasted the hull. I guess I’ll just bury it again.

Re: Strange plug on the front of my Keel (Maramu)

Lance Leonard
 

The yard found it buried in fairing compound when they soda blasted the hull. I guess I’ll just bury it again.

Re: Fresh water tank pipe noise

CW Bill Rouse
 

Ian, the first photo is of the aft-most section of the tank. The pickup line is copper and could possibly shake and knock against the wall, but I have to wonder what would cause that.

Is it possible that there is a slight suction-side air leak? A burst of air into the suction side might cause that, at least I think so. The other end of the copper pickup line in the photo is near the freshwater pump and a hose runs from the line to the pump. When Amel made your SM, they used some sort of sealant between the copper and the hose and 2 hose clamps to help avoid a suction side leak. There will be no evidence of a suction side leak and no water leaking out, just air going in. See the second photo. 
image.png

image.png

CW Bill Rouse Amel Owners Yacht School
720 Winnie, Galveston Island, Texas 77550 
   

On Wed, Feb 2, 2022 at 4:15 AM Ian Townsend <smlocalola@...> wrote:

Has anyone ever heard a knocking sound coming from the draw pipe (I think) when the fresh water pump turns on? Is it a loose bracket or something else?

 

ian
SM153
Loca Lola II
Re: DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

Ralf Schroeder
 

Hi David,

the message "poor reputation" is an information about the Spam Confidence Level(SCL) or SPAM reputation from a SPAM Scanner or e-mail server or best, an e-mail gateway.

Very small or old SPAM scanner use one or more databases from companies, that serve SPAM informations about e-mail addresses or domains on a blacklist.
On this databases, it´s mostly very "easy" to become a record on it.
Our group send some emails every day. And when then a user on an open e-mail provider (Hotmail, gmail and so on) mean, this is SPAM, it is possible, that he (or she) click on a button, that mark the e-mails as SPAM.
When this user or some more user do this sometimes, some of this e-mail provider generate a record to one of this database. And some e-mail provider generate this record automatically, when the systems recognize some e-mails with the some content for some users.

Better e-mail gateway's use this databases, too. And this systems are using some other tools, rules and algorithm, to set the SCL.
And on this complete work, the gateway generate a poor reputation and about this the SCL.

So what is to do?
Someone has to check, use your ISP only one off the databases from a SPAM blacklist. When this is correct, mostly there is a process, to delete the record from the blacklist.
Use your ISP a modern e-mail gateway with algorithm, sometimes it is possible, to generate a record on a whitelist.

Best Regards
Ralf
SV Baghira, Sharki #42

-----Ursprüngliche Nachricht-----
Von: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] Im Auftrag von David Vogel
Gesendet: Mittwoch, 2. Februar 2022 06:49
An: main@AmelYachtOwners.groups.io
Betreff: Re: [AmelYachtOwners] DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

Anyone know wht this means: how I read it is that my ISP (asav.iinet.net.au) is rejecting emails sent from "66.175.222.12" (which I presume is 'amelyachtowners.groups.io'), due to so-called 'poor reputation'. Any further insights, or how to fix this?






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Re: DOES ANYONE KNOW WHY THE EMAILS i POST TO THE GROUP DO NOT SHOW UP?

CW Bill Rouse
 

Groups.io is constantly working on an issue caused by users of groups.io. Some users either accidentally mark incoming messages as spam, but more often when they do not want to receive any more emails, simply mark it as spam. This included a few members of this group.

The Internet Community of ISPs is constantly trying to identify those people producing spam. Because a few users Groups.io make this error, this will happen. It is ALWAYS the smaller ISPs that do not update their database. Optonline is one of those ISPs. If you have GMAIL, you will not have this problem, unless you mark a Group email as spam.

I get an email from Groups.io whenever someone marks an email as spam. And Groups.io immediately removes that member from our Group, sending an email to the member with a link to re-join. BUT, please understand that the marking of that email as spam has already done its damage with regard to the ISP community trying to eliminate spammers. Almost every time this happens somebody at Groups.io is required to mitigate the issue with the ISP community.

I hope this is understandable, but if it is not understandable to you and you have accidentally marked an email from our Group as spam, please change your email provider to GMAIL.

Bill


CW Bill Rouse Amel Owners Yacht School
720 Winnie, Galveston Island, Texas 77550 
   

On Tue, Feb 1, 2022 at 11:49 PM David Vogel <david.vogel@...> wrote:
Anyone know wht this means:  how I read it is that my ISP (asav.iinet.net.au) is rejecting emails sent from "66.175.222.12" (which I presume is 'amelyachtowners.groups.io'), due to so-called 'poor reputation'.  Any further insights, or how to fix this?
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