Re: Good Service In Marmaris Turkey

greatketch@...

While I was writing that last post I had to stop and convince myself that a course optimized to a point dead upwind would be the same as a course optimized to a point that was, say 25 degrees off the wind.  After drawing a few vector diagrams, I managed to convince myself that the optimization would give the same result to either course. (Note well: convincing myself is NOT the same as a proof. I could be wrong!)

Here is my logic... While sailing up wind I can break my velocity vector into two component vectors:  one straight upwind, and the other perpendicular to that.  Any useful optimization program must maximize the upwind velocity vector and minimize the cross wind vector.  No matter where my destination is in the upwind zone (between the tack angles) the vector perpendicular to the wind is taking me away from where I want to go, so minimizing that is always best.  QED.  (Maybe)

And I definitely hear you about avoiding beating!  We just had an unusually delightful close hauled sail from Bar Harbor to Gloucester, but that is definitely the exception the the rule!  I'd rather wait a week, or sail an extra 1000 miles than spend 3 days beating.

Bill Kinney
SM160, Harmonie
Gloucester, Mass

---In amelyachtowners@..., <svperegrinus@...> wrote :

Bill,

Thanks for the detailed explanation.  My only remaining question is if under "W", the autopilot is trying to optimize VMG to an Apparent Wind Angle AWA of zero, or is it trying to optimize to a shallower angle, say, 10° or 20°.  It seems to me that optimized VMG is not the same to a destination that is {0°, 10°, 20° or 30°} AWA of one's current position.

When under autopilot, we sail in "Wind" mode most of the time by far, so we'll try in the weeks and months ahead to see what we can learn of the VMG algorithm the B&G autopilot uses.  The only problem is that we try and avoid beating like the plague, so it may take a while to accumulate observations on VMG-optimization.

Cheerio,

Peregrinus
SM2K N. 350
at anchor, Thermopylae

[Amel Yacht Owners] Anemometer stop working

Alexandre Uster von Baar

The Anemometer stop working… Wind speed was showing 0 during the last trip
Has anyone experienced this?
What was the issue and solution?

Sincerely, Alexandre
SM2K #289 NIKIMAT
IGY Simpson Bay Marina, St Maarten, NA

Re: [Amel Yacht Owners] Down wind sail configuration

Ian Park

Miles
The ballooner setup is quite unique to AMEL boats. The sail is similar to a cruising chute, the same dimensions as the genoa, but goes up a second luff groove on the genoa furled. It is hoisted by a continuous halliard arrangement that enables the head of the sail to be engaged in the top swivel and the halliard to be completely removed. Thus enables both sails to be reeled simultaneously on the roller or rolled in completely. A third luff groove enables the ballooner to be lowered by hoisting a plastic 'mouse' which releases the ballooner - hence Chris's comment about his fast the sail comes down.

The twin articulated poles again are unique. They are much safer to deploy shorthanded than a spinnaker pole since none of the moving part of the pole is over the deck. The four pole control lines are colour coded individually and marked with the optimum creating off position to facilitate an easy set up prior to unfurling the genoa and then hoisting the ballooner.

All the instructions and diagrams are in the SM owners manual, a copy of which I believe is on file.

Hope this gives a quick overview, but reading the chapter will make more sense.

Good luck

Ian
Ocean Hobo SN96

Re: [Amel Yacht Owners] Down wind sail configuration

greatketch@...

You might find this post on my blog useful if you are interested in the mechanics of the downwind rig on an Amel...

Bill Kinney
SM160, Harmonie
Gloucester, Mass

Re: [Amel Yacht Owners] finding LED bulbs for overhead lights

Germain Jean-Pierre <jgermain@...>

Hi Ryan,

Try boatlamps.co.uk… their site has piccies of every LED fixture known.

Good luck.

Jean-Pierre Germain,
SY Eleuthera, SM 007

On 16 Aug 2017, at 19:22, Ryan Meador ryan.d.meador@... [amelyachtowners] <amelyachtowners@...> wrote:

Hi all,
I'm in the process of converting all the interior lights on my SM to LED.  It was easy to find BA15d LED bulbs for the wall lights, so that's taken care of (though I did break one since the label on the fixture said they're G4, but they're definitely BA15d -- twist, don't pull!).  I'm having a bear of a time finding a bulb that will work in the overhead fixtures though.  They all take G4 bulbs, but the sockets are mounted such that the two pins are vertically aligned.  All the bulbs for this application (example) have pins that are horizontal, so they won't fit.  I have been able to find some LED bulbs that are the same form factor as the original halogens, but they have much lower light output because they're smaller and some of the LEDs are pointing at the ceiling, so I don't want those.  I also haven't had luck finding a 90 degree adapter.  Does anyone have a solution to this problem?  I've seen posts in the archive about people who have changed their lights, but not how they did it.  I thought I should ask before I go creating my own adapters or kludging something together.

Thanks,
Ryan
SM 233 Iteration
Boston, USA

Re: [Amel Yacht Owners] Down wind sail configuration

smiles bernard

Thanks greatketch!
Could anyone point me to info about how to set up this downwind ballooned rig?
Does it fly on a removable forestay? In a dyneema luff rope ? Something else ?
I've never heard of a balooner before btw
This is different to a asymmetrical cruising chute right?
Many thanks for any help and advise
Miles

On 15 Aug 2017, at 21:03, 'sailormon' kimberlite@... [amelyachtowners] <amelyachtowners@...> wrote:

Dave,

My experience with the poles is that the poles are supported by the lines and very little if any force is on the rigging loop.

The loop is used basically to support the pole while you are rigging the lines.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Tuesday, August 15, 2017 3:41 PM
To: amelyachtowners@...
Subject: Re: [Amel Yacht Owners] Down wind sail configuration

Hello All,

Would anyone have any suggestions on how one might obtain a second downwind pole setup for a Santorin?

Seems unlikely Amel would still carry them but I haven’t checked.  We have one, and I was planning on using a poled out genoa and prevented main for a downwind rig, but with all the praise for the dual headsail setup and hearing how much less roll there is makes me realize I’d like the two.

Also, does anyone have any concern regarding the wire clamps for the pole support on the shrouds, in that they do seem slightly angulated to the long axis of the wires, thus potentially causing a stress riser or work hardening in this area over time.    Many thanks.

Dave Bruce,

Liesse SN06

On Aug 12, 2017, at 12:00 AM, parkianj@... [amelyachtowners] <amelyachtowners@...> wrote:

Ian
I have decided to desist the temptation of ruining the ballooner! I don't have space to carry an extra sail that I would rarely use.
Anyway, I can tell just from the look on my Linda's patient face that reads "What are you playing at. Why don't you just put the engine on and get there!!"
Thanks for the confirmation anyway.

Ian
Ocean Hobo SN96

finding LED bulbs for overhead lights

Hi all,
I'm in the process of converting all the interior lights on my SM to LED.  It was easy to find BA15d LED bulbs for the wall lights, so that's taken care of (though I did break one since the label on the fixture said they're G4, but they're definitely BA15d -- twist, don't pull!).  I'm having a bear of a time finding a bulb that will work in the overhead fixtures though.  They all take G4 bulbs, but the sockets are mounted such that the two pins are vertically aligned.  All the bulbs for this application (example) have pins that are horizontal, so they won't fit.  I have been able to find some LED bulbs that are the same form factor as the original halogens, but they have much lower light output because they're smaller and some of the LEDs are pointing at the ceiling, so I don't want those.  I also haven't had luck finding a 90 degree adapter.  Does anyone have a solution to this problem?  I've seen posts in the archive about people who have changed their lights, but not how they did it.  I thought I should ask before I go creating my own adapters or kludging something together.

Thanks,
Ryan
SM 233 Iteration
Boston, USA

Re: Good Service In Marmaris Turkey

svperegrinus@yahoo.com

Bill,

Thanks for the detailed explanation.  My only remaining question is if under "W", the autopilot is trying to optimize VMG to an Apparent Wind Angle AWA of zero, or is it trying to optimize to a shallower angle, say, 10° or 20°.  It seems to me that optimized VMG is not the same to a destination that is {0°, 10°, 20° or 30°} AWA of one's current position.

When under autopilot, we sail in "Wind" mode most of the time by far, so we'll try in the weeks and months ahead to see what we can learn of the VMG algorithm the B&G autopilot uses.  The only problem is that we try and avoid beating like the plague, so it may take a while to accumulate observations on VMG-optimization.

Cheerio,

Peregrinus
SM2K N. 350
at anchor, Thermopylae

---In amelyachtowners@..., <greatketch@...> wrote :

It definitely works in W(ind) mode.  What it is doing is finding the wind angle that will make the boat reach an imaginary waypoint directly to windward, as fast as possible. The VMG it is optimizing is the VMG to windward, NOT the VMG to the next navigation waypoint.

I know the manual gives very little to this function, but what it says (in total!) is "You can optimize the VMG to the wind. When selected the function will be active for 5-10 minutes after a new wind angle has been set and only when beating."

The assumption here is that if you are beating, then your desired destination must be to windward of your location. It actually doesn't matter for the optimization if that destination is directly to windward, as long as it is somewhere in the cone between the boat's tacking angles.

Note that the optimization in not continuous.  It works until it is finds an optimum that meets its criteria (what ever that is!), and then holds that wind angle.  If conditions change, such as wind strength or wave size, it is a good idea to command the unit to make a small change in course so it re-runs the optimization program.

As I said, I rarely use Wn (Wind Navigation) mode on my system, so I have little experience with how the VMG Optimization function works there, but based on what I understand about the Wn mode works, the VMG function wouldn't actually do anything

The optimized wind angle will always produce a speed through the water a bit slower than you could get if you bore off just a few degrees. Using the simplest possible analysis, if you are sailing 6 knots at a True Wind Angle of 55 degrees, anything better than 5.5 knots will give a better VMG at 49 degrees TWA

I do not know if this function uses only speed through the water and true wind angle for it's calculation, or if it adds in course and speed over ground.  I emailed B&G's tech support asking that question, but never got an answer.

Bill Kinney
SM160, Harmonie
Gloucester, Mass

Re: Good Service In Marmaris Turkey

greatketch@...

It definitely works in W(ind) mode.  What it is doing is finding the wind angle that will make the boat reach an imaginary waypoint directly to windward, as fast as possible. The VMG it is optimizing is the VMG to windward, NOT the VMG to the next navigation waypoint.

I know the manual gives very little to this function, but what it says (in total!) is "You can optimize the VMG to the wind. When selected the function will be active for 5-10 minutes after a new wind angle has been set and only when beating."

The assumption here is that if you are beating, then your desired destination must be to windward of your location. It actually doesn't matter for the optimization if that destination is directly to windward, as long as it is somewhere in the cone between the boat's tacking angles.

Note that the optimization in not continuous.  It works until it is finds an optimum that meets its criteria (what ever that is!), and then holds that wind angle.  If conditions change, such as wind strength or wave size, it is a good idea to command the unit to make a small change in course so it re-runs the optimization program.

As I said, I rarely use Wn (Wind Navigation) mode on my system, so I have little experience with how the VMG Optimization function works there, but based on what I understand about the Wn mode works, the VMG function wouldn't actually do anything

The optimized wind angle will always produce a speed through the water a bit slower than you could get if you bore off just a few degrees. Using the simplest possible analysis, if you are sailing 6 knots at a True Wind Angle of 55 degrees, anything better than 5.5 knots will give a better VMG at 49 degrees TWA

I do not know if this function uses only speed through the water and true wind angle for it's calculation, or if it adds in course and speed over ground.  I emailed B&G's tech support asking that question, but never got an answer.

Bill Kinney
SM160, Harmonie
Gloucester, Mass

Re: DC Panel dial and green light in star

rettirc@...

Yes I was using the spare halyard to dry the spinnaker, they do come down quickly, very glad it did not go overboard as we were motoring at the time.

Re: [Amel Yacht Owners re excitation and halyard broken and jammed

calbyy@...

some clues (thanks to servicing masts on Maramu 1982) concerning halyard stuck inside the mast
• halyards are running Inside mast independently from cables (electric, signal);
• cables are run through pvc pipes (2 x dia 32 mm) held by rivets or guided on rail;
• one place where halyards can get stuck is at top where cables are coming out of pvc tube;
• other place is on rivet heads (or bolts if modified ?) holding mast fittings in place;
• other place is rope jumped out of pulley block groove at top of mast;

one trip up the mast with Tools to remove screws holding mast fitting in place & a good look Inside mast seems to be the way before pulling rope with winch.
Wish you luck & a good trip to the top.

cheistian alby - Desirade VIII Maramu 116 now in Canet

Re: [Amel Yacht Owners] Amel sharki

INUS - BUSCH

Owen,

I like the Sharki too: She is giving to me a “save” feeling, much more than the other boats I had before. Sailing became more fun and less work, even if you are going alone! For small crew the best choice to my opinion.

All the best

Dieter
Fal-lera, Sharki #135

Re: [Amel Yacht Owners] Onan starting problem

Willem Kroes

I am referring to the horizontal placed solenoid connected to the red manual stop lever.

Regards, Willem

Re: DC Panel dial and green light in star

Ian Park

Chris,
My ballooner halliard does not run inside the mast. I do have a spare halliard that does just that. My ballooner halliard runs externally through a block at the top of the mast with both ends free to attach to the mouse on the ballooner. This enables me to take the halliard forward and sit with my feet in the starboard locker while I haul up and check the feed of the sail. Likewise, that's where I sit to drop the ballooner back into the locker.
Or were you just using the spare halliard to dry the sail?

Ian
Ocean Hobo SN96

Re: [Amel Yacht Owners] Down wind sail configuration

Ian Park

Dave
I think the best bet is to make an enquiry to AMEL. Other than that see if a rigging company can make a copy of your current pole - the end fittings must be fairly standard.
As to the frame: I had some concerns that mine had moved on the rigging so decided to straighten them up. I checked the angle of the short pole from the mast with other AMELs as mine seemed to slope down very slightly, but that does seem to be the correct. If you get them exactly at right angles to the mast they do not line up perfectly in their engagement holes or exactly with the retaining pins. The angle is very slight. But I tightened the rigging sections reasonably straight.
Perhaps someone else can add to this - the pole rigging is identical to the SM.
And, yes - the downwind performance is great to sit back and watch!

Trust you are enjoying your boat. best wishes

Ian
Ocean Hobo SN 96

Re: [Amel Yacht Owners re excitation and halyard broken and jammed

Danny and Yvonne SIMMS

Hi.
You should have 12bolt in the excitation circuit. Sorry can't help with the halyard issue but I'm sure someone will have been there before
Regards
Danny

Sent from my Vodafone Smart

On 16 Aug 2017 18:21, "rettirc@... [amelyachtowners]" <amelyachtowners@...> wrote:

Thanks Danny,

When I checked the excitation to the 12v alternator I only had 7volts, perhaps not enough to start the alternator?  I need to reconnect the cable back to the alternator and test it again.  Must be a bad contact somewhere.

I am totally stumped about what to do with the rope in the mast, only about 5 metres came out of the mast at the bottom after it broke, the rest of the rope is jammed inside the mast, thoughts?  What can I do?  I am trying to resist the urge to winch it out, I know it shall damage something.   Are the electrical wires in this section too?

Chris

Re: DC Panel dial and green light in star

rettirc@...

Thanks Danny,
When I checked the excitation to the 12v alternator I only had 7volts, perhaps not enough to start the alternator?  I need to reconnect the cable back to the alternator and test it again.  Must be a bad contact somewhere.

I am totally stumped about what to do with the rope in the mast, only about 5 metres came out of the mast at the bottom after it broke, the rest of the rope is jammed inside the mast, thoughts?  What can I do?  I am trying to resist the urge to winch it out, I know it shall damage something.   Are the electrical wires in this section too?

Chris

Re: [Amel Yacht Owners] Amel 54 with Volkswagen engine/owners

Halidun Karagoz

Hi Joel,
I hope this helps.
Cheers,
Haldun
A54 #164

---- 'Joel Potter' jfpottercys@... [amelyachtowners] şunu yazdı ----

>
>
> Hello everyone. Could some owners of Amel 54’s with the Volkswagen marine diesel give me some information regarding the following? I would appreciate it greatly and many thanks in advance.
>
>  OVERALL SATISFACTION: good
>
>  EASE OF ACCESS TO AUTHORIZED DEALER SERVICE/ ASSISTANCE:         good                                                          WHERE ARE YOU LOCATED:turkey
>
>  GENERAL QUALITY OF DEALER SERVICE:good
>
>  ANY REOCCURING TECHNICAL PROBLEMS:none
>
>  RELIABILITY/DEPENDABILITY:good
>
>
>  WHAT DO YOU LIKE THE LEAST ABOUT THIS ENGINE:relatively high consumption
>
>  IF YOU ABSOLUTELY HAD TO PICK ANOTHER ENGINE, WHICH ONE WOULD IT BE:
>
>    Again, thanks in advance and I truly appreciate any and all responses. This information will allow me to better serve my Amel customers in the future.
>
>  All The Best, Joel
>
>  Joel F. Potter/Cruising Yacht Specialist LLC
>
> THE EXPERIENCED AMEL GUY
>
> 954 462 5869 office
>
> 954 812 2485 cell
>
>

Re: [Amel Yacht Owners] Fresh water in locker

Alan Leslie

Thanks John for your comprehensive reply !!

We occasionally get condensation from the salon freezer in the aft central floor locker.

I've found the problem, it's the hose from the fresh water pump at the connection where it comes through the engine room bulkhead.

Problem was the leak was so small it was difficult to see where it was coming from, but by placing a small sponge in different places I was able to eliminate the freezer. and eventually trace it to that connector. The water was coming from the hose and running along the connector, down the bulkhead and then to the bottom of the locker. It would take about 5 minutes to see it in the bilge under the galley sink.

Cheers
Alan
Elyse SM437

Re: Good Service In Marmaris Turkey

Alan Leslie

It was keeping a constant angle to the wind.
To do that it has to continually change the heading of the boat to keep the wind to heading angle constant.
This mode is great for passage making as the sails don't need constant attention.
The course is not constant, it varies with the wind direction.
If you have a constant heading or have a waypoint that the pilot is steering to, and the wind direction changes, you need to adjust the sails.....and sometimes you may not be able to and end up in irons or involuntarily gybing.
Cheers
Alan
Elyse SM437

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