Date   

Check your GPS / AIS devices. Some of them failed on Jan 2, 2022 due to the "GPS Rollover" bug

Scott SV Tengah
 

Garulfo, a fellow A54 informed us that their Furuno FA-50 AIS transceiver stopped transmitting at midnight on Jan 2, 2022 GMT. By chance, they use the output from the AIS unit (AIVDO NMEA sentence) to feed their wifi gateway and noticed that they lost position at that precise time.

I checked my own equipment and have the same issue. My FA-50 AIS transceiver, but GP-150 GPS Navigator and also my Navnet V2 are all subject to the "GPS rollover" issue. I happened to be on a Catana 50 last night and all of their GPS equipment had the same issue.

See attached.

https://support.furuno.co.uk/en_US/news/gps-rollover-january-2022

It is not a Furuno specific problem, but rather related to the week counter system on the GPS system, which is only 10 binary digits. That means at 1024, it goes back to zero. Unless the manufacturer anticipates this, your device will either lose position, show a date 19.7 years in the past or both. 

For Furuno, many of the devices can be updated by the dealer. Unfortunately for us, we're in the remote Tuamotus and have no intention of being near a dealer for the next 6 months. 

If you want to check your AIS, ask a neighbor boat whether they can see you. If you're a bit more technically inclined, you can check the NMEA output and put your AIVDO sentence through this decoder. If it shows invalid position value, then your AIS is no longer transmitting your position. It will likely still receive, however.

https://www.aggsoft.com/ais-decoder.htm

Thanks to Garulfo for pointing out this problem, otherwise I would have blissfully been unaware that I wasn't transmitting. I am guessing many AIS users will be in the same position.

--
Scott 
2007 A54 #69
SV Tengah
http://www.svtengah.com


Re: Onan running but no 230v

Olivier Beaute
 

Hello Joan,

could you mention your AMEL model?
If you have a 55 or a 50, there is a 230V Ground Fault Breaker in the engine room.

Olivier


Re: Rudder post packing and nut size

Roque
 

-30c there and +30c here. Just a sign!  😀 

Never changed mine, but, according to other messages here, 8mm. And some say 5/16 will do. 

Regarding the length, you can estimate using the diameter. Someone mentioned that Amel sends 70 cm (3 rings). I would buy a little bit more just to leave room for some mistake cutting it to size.


Hope it helps

Livre de vírus. www.avast.com.

Em qua., 5 de jan. de 2022 às 17:40, Randall Walker <sailingalbedo@...> escreveu:

Thanks Roque, Yes doing fine in Northern Alberta for the next week its only -30c here. More reason to get back to Grenada.
Would you happen to know the packing/stuffing size??


Virus-free. www.avg.com

On Wed, Jan 5, 2022 at 3:16 PM Roque <ediroque@...> wrote:
Hi Randall. Hope you are fine. And happy 2022

The rudder nut is 70mm on Attika A54#117

Rgds

Roque

Livre de vírus. www.avast.com.

Em qua., 5 de jan. de 2022 às 16:56, Randall Walker <sailingalbedo@...> escreveu:
I have seen this before but, you know.

Looking for the nut size on the rudder post, I believe 70 mm or 73 mm,
And the size of the packing. width and length needed,
Thanks
Randall
A54#56


--
Roque
Attika A54 117
Paraty - Brazil 


--
Roque
Attika A54 117
Paraty - Brazil 


Re: Rudder post packing and nut size

Randall Walker
 

Thanks Roque, Yes doing fine in Northern Alberta for the next week its only -30c here. More reason to get back to Grenada.
Would you happen to know the packing/stuffing size??


Virus-free. www.avg.com


On Wed, Jan 5, 2022 at 3:16 PM Roque <ediroque@...> wrote:
Hi Randall. Hope you are fine. And happy 2022

The rudder nut is 70mm on Attika A54#117

Rgds

Roque

Livre de vírus. www.avast.com.

Em qua., 5 de jan. de 2022 às 16:56, Randall Walker <sailingalbedo@...> escreveu:
I have seen this before but, you know.

Looking for the nut size on the rudder post, I believe 70 mm or 73 mm,
And the size of the packing. width and length needed,
Thanks
Randall
A54#56


--
Roque
Attika A54 117
Paraty - Brazil 


Re: Rudder post packing and nut size

Roque
 

Hi Randall. Hope you are fine. And happy 2022

The rudder nut is 70mm on Attika A54#117

Rgds

Roque

Livre de vírus. www.avast.com.

Em qua., 5 de jan. de 2022 às 16:56, Randall Walker <sailingalbedo@...> escreveu:

I have seen this before but, you know.

Looking for the nut size on the rudder post, I believe 70 mm or 73 mm,
And the size of the packing. width and length needed,
Thanks
Randall
A54#56


--
Roque
Attika A54 117
Paraty - Brazil 


Rudder post packing and nut size

Randall Walker
 

I have seen this before but, you know.

Looking for the nut size on the rudder post, I believe 70 mm or 73 mm,
And the size of the packing. width and length needed,
Thanks
Randall
A54#56


Re: Onan running but no 230v

 

In this Order
  1. Check the main breaker on the aft side of the Onan.
  2. Check the automatic shore power/generator circuit and relay
  3. Call an Onan tech

On Wed, Jan 5, 2022 at 10:53 AM Nick Newington via groups.io <ngtnewington=aol.com@groups.io> wrote:
Hi Joan,

Have you checked the trip switches? There is one on my 54  in the galley area above the sink in cupboard beside ac panel. There is also one on the Onan itself…

Kind regards
Nick

S/Y Amelia

AML 54-019 
stored ashore Leros Gr



On 5 Jan 2022, at 17:40, Joan Blaas <joan.blaas@...> wrote:

Hello,

My Onan generator 
is running well and I get 13.6v on the cables directly on the generator. On the Onan display panel I see 230v and I  don't get any errors.

Unfortunately on the 230 V AC galley panel, the indicator light for the "Generator voltage presence" does not light up. Also I don't get any 230v and the batteries are not being charged.

What can be the source of this problem? Is there some switch of fuse somewhere that I need to turn on?

Thanks,

Joan Blaas
 


Re: Onan running but no 230v

Nick Newington
 

Hi Joan,

Have you checked the trip switches? There is one on my 54  in the galley area above the sink in cupboard beside ac panel. There is also one on the Onan itself…

Kind regards
Nick

S/Y Amelia

AML 54-019 
stored ashore Leros Gr



On 5 Jan 2022, at 17:40, Joan Blaas <joan.blaas@...> wrote:

Hello,

My Onan generator 
is running well and I get 13.6v on the cables directly on the generator. On the Onan display panel I see 230v and I  don't get any errors.

Unfortunately on the 230 V AC galley panel, the indicator light for the "Generator voltage presence" does not light up. Also I don't get any 230v and the batteries are not being charged.

What can be the source of this problem? Is there some switch of fuse somewhere that I need to turn on?

Thanks,

Joan Blaas
 


Onan running but no 230v

Joan Blaas
 

Hello,

My Onan generator 
is running well and I get 13.6v on the cables directly on the generator. On the Onan display panel I see 230v and I  don't get any errors.

Unfortunately on the 230 V AC galley panel, the indicator light for the "Generator voltage presence" does not light up. Also I don't get any 230v and the batteries are not being charged.

What can be the source of this problem? Is there some switch of fuse somewhere that I need to turn on?

Thanks,

Joan Blaas
 


Re: Ultrasonic Wind Sensors

Mike Johnson
 

Dear Bill,

Thank you for the positive view and realistic expectation of performance.

Kind regards

Mike & PETA

Solitude
SM2k 461

On 5 Jan 2022, at 00:03, Bill Kinney <cruisingconsulting@...> wrote:

Mike & Peta,

I used an Airmar WX220 on my old boat, and it worked fine.  This unit is not as accurate (especially with wind direction) as the B&G unit, but for must cruising boats that's not a big deal. The only time it can be a problem is when steering to the AWA while close hauled.  Under those conditions that +/-3 degree specification can be an issue.  The CV7 unit (which I have no personnel experience with) quotes a +/-1 degree accuracy for wind angle.  That would be better, for sure.

It was nice having all the extra weather data available from the WX220 on the NMEA network.  Don't expect the GPS to be very useful, especially for SOG.  The mast movement in a seaway is counted as boat speed, and results in some very odd data...

Overall a plus, and if we had to replace our B&G I'd consider an untrasonic unit again.

Bill Kinney
SM160, Harmonie
For Lauderdale, FL, USA


Re: Skin Fittings Glassed in??

Gerhard Mueller
 

TruDesign offers through hull fittings as well as their ball valves. Because they are in plastic no bonding is needed. However the dimension of the ball valves is a little bit larger than the bronze ones. People using TruDesign are talking about the long life of their fittings.
--
Gerhard Mueller
Amel Sharki #60
Currently North Sea, Germany


Skin Fittings Glassed in??

Chris Warren
 

I am the proud new owner of a Maramu #69, this forum is a wealth of information which I am very appreciative of. I have some rectification work to do on the boat and one of the priority jobs is to replace the sea cocks.

Most of the skin fittings are the original Amel ones which are glassed in, While I have been able to find some information on the site regarding the replacement of the valves I have not found any information on why Amel chose to do this. I like the fact that they are flush and secure however would be interested to know if there are any other reasons? Do these often need to be replaced?

I was planning on using Maestrini or Groco bronze seacocks (or maybe even Tru Design if the skin fitting needs replacement as well as the seacock). I understand that you need to ensure that they are all bonded which is why I would not replace bronze valves with composite with a bronze through hull.

thanks for you input and the great forum!

Chris Warren
Kaleula@...
Maramu #69


Re: Ultrasonic Wind Sensors

Bill Kinney
 

Mike & Peta,

I used an Airmar WX220 on my old boat, and it worked fine.  This unit is not as accurate (especially with wind direction) as the B&G unit, but for must cruising boats that's not a big deal. The only time it can be a problem is when steering to the AWA while close hauled.  Under those conditions that +/-3 degree specification can be an issue.  The CV7 unit (which I have no personnel experience with) quotes a +/-1 degree accuracy for wind angle.  That would be better, for sure.

It was nice having all the extra weather data available from the WX220 on the NMEA network.  Don't expect the GPS to be very useful, especially for SOG.  The mast movement in a seaway is counted as boat speed, and results in some very odd data...

Overall a plus, and if we had to replace our B&G I'd consider an untrasonic unit again.

Bill Kinney
SM160, Harmonie
For Lauderdale, FL, USA


Machining AMEL-specific tools in NZ

David Vogel
 

Calling all SM owners in NZ.

Having done a small run of the copper grounding straps for the grey-water bilge, and been happy with the results, I am now planning on getting some AMEL-specific tools machined - for example, the puller for the main-outhaul line-handling winch/motor/gearbox assembly.

It may be possible to come to some kind of economy-of-scale arrangement with the fabricator/s. Even if not, if you have any hints or tips on where to go / who to use, I would be interested to hear; or, if you're wanting to bolster your tool-kit with that special nick-knack ...

If you’re interested in getting involved, please get back to me via this forum; I would then plan to take the discussion off-line for resolving the nitty-gritty.

Thanks, and best to all,

David
SM#396, Perigee
Town-Basin, Whangarei


Re: In Mast Furling

Martin Birkhoff
 

All the best for 2022 to all Amelians
 
For those who are interested, here a supplement on the subject of fully battened main:
By chance, I spoke to the former owner of the Super Maramu Stenella today. (Sold eight weeks ago.) He had replaced the main and mizzen on his Super Maramu with fully battened sails in 2011. The sailmaker was Beilken. All battens are consistently led to the foot of the sail. As he reported, there have never been any problems with the battened sails when furling, unfurling or reefing over the years! 
 
Regards
Martin
Mago del Sur - 54#40
Marina di Ragusa, Sicily


Re: Ultrasonic Wind Sensors

Mike Johnson
 

Dear Eloi & Ian,

Thanks for the information. I will replace the B&G with an ultrasonic wind sensor.

Very best wishes

Mike & PETA

Solitude
SM2k 461

On 4 Jan 2022, at 13:58, Eloi Bamberg <eloi.bamberg@...> wrote:

No interferences with VHF nor AIS.

Eloi


Re: Aft hatch fan mount

karkauai
 

Great info. Bob, thanks.  Unfortunately the photos link doesn't work for me.  It says the link has been deleted or the URL is invalid.

Can you send them directly to me?

Thanks,
Kent
karkauai@...
828-234-6819

--
Kent & Iris
KRISTY
SM243


Re: --Onan Generator exhaust temperature switch - great price.

Barry Connor
 

Hi again Eric (not Ken - sorry about that).
I will have 1 of these Hightech temperature exhaust pipe  cut out switches.
I will email you with ship to details.
Very Best 
Barry
“SV Lady Penelope II”
Amel 54.  #17
Le Marin 
Martinique 


On Jan 4, 2022, at 08:15, Billy Newport <billy@...> wrote:

On Mon, Jan 3, 2022 at 11:55 AM, Eric Freedman wrote:
kimberlite@...
I'd like the last one please. Emailed you seperately.


Re: Ultrasonic Wind Sensors

Eloi Bamberg
 

No interferences with VHF nor AIS.

Eloi


Re: Ultrasonic Wind Sensors

Mike Johnson
 

Hi Eloi,

Thanks for the prompt response.

Do you get any interference with the VHF?

Very best wishes

Mike & Peta

Solitude
SM2k 461

On 4 Jan 2022, at 12:40, Eloi Bamberg <eloi.bamberg@...> wrote:

Hello,
I refitted with the LCJ / CV7 with Windyplug.
CV7-WINDYPLUG - NMEA2000 ultrasonic wind vane-anemometer (lcjcapteurs.com)
works great, recommend it. You can reuse 2 of the mounting holes. With a small piece of aluminium you can prepare the mounting before you climb the mast, so no drilling at the mast top ;-)

Eloi
SM2K 426 RedLion
 

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