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Search: Posts Made By: Dsanduril
Forum: Seamanship & Boat Handling 19-09-2023, 16:50
Replies: 332
Views: 50,854
Posted By Dsanduril
Re: The loss of M/V Conception

Interesting. Had thought the batttery source plausible, and a good (albeit horrible) learning experience all around. Trash can fires are something we know about and know how to deal with. Very sad...
Forum: Multihull Sailboats 26-05-2022, 14:13
Replies: 16
Views: 1,225
Posted By Dsanduril
Re: Hauling a Norman Cross 50'

I suppose this won't help at this point, but after numerous times hauling in slings, and having the exact troubles you are having, we built a set of lifting plates for the boat.

They were bolted...
Forum: Multihull Sailboats 26-05-2022, 09:07
Replies: 16
Views: 1,225
Posted By Dsanduril
Re: Hauling a Norman Cross 50'

Here's a photo of a Cross 40 in the air. Sorry about the quality, but this long predates digital photos online so I had to scan a very old photo.

Note the straps are only on the main hull. We...
Forum: Emergency, Disaster and Distress 21-10-2021, 16:54
Replies: 41
Views: 6,240
Posted By Dsanduril
Re: Coast Guard rescues sailor in Gulf of Alaska storm

Station 46085 (LLNR 984.15) - CENTRAL GULF OF ALASKA - 265NM West of Cape Ommaney, AK seems to be the closest buoy, about 100 miles W of the rescue point. For the worst part of the 11th it reports 30...
Forum: Multihull Sailboats 22-09-2021, 17:47
Replies: 55
Views: 10,499
Posted By Dsanduril
Re: Hulls split down the middle

You're showing your bias. The OP's boat may have been made in China, but the split hull boat I personally witnessed was built in France.
Forum: Multihull Sailboats 22-09-2021, 12:56
Replies: 55
Views: 10,499
Posted By Dsanduril
Re: Hulls split down the middle

We were present in the yard when poor placement (not aligned with bulkheads) of the Travelift straps split a cat hull right down the centerline of both hulls. The operator heard the injury occur and...
Forum: Marine Electronics 21-09-2021, 17:41
Replies: 8
Views: 2,778
Posted By Dsanduril
Re: Configuring a Raymarine SeaTalk NG system

Raymarine still has a lot of manuals online:

A Series Installation Manual (https://raymarine.app.box.com/s/0ka25bb7n2c4em51aeag/file/6591309775)

Legacy MFD Manuals Directory...
Forum: Navigation 21-09-2021, 17:26
Replies: 5
Views: 1,845
Posted By Dsanduril
Re: Gulf Stream satellite images

NOAA has several data sets, probably more that I don't know about:

https://ocean.weather.gov/gulf_stream.php

https://polar.ncep.noaa.gov/global/monitor/ The links that go deeper here are broken
Forum: Propellers & Drive Systems 21-09-2021, 14:55
Replies: 6
Views: 882
Posted By Dsanduril
Re: Cutless bearing question

It's the internet, you'll get more opinions than you want. If it doesn't interfere with anything (and it sounds like the old one was proud and worked OK) then I'd leave proud as Bud says, to ease...
Forum: COVID-19 | Containment Area 21-09-2021, 14:32
Replies: 176
Views: 12,468
Posted By Dsanduril
Re: Warning about Ireland

It took all of 30 seconds of searching to find Marine Notice 16 of 2021 (https://www.sailing.ie/Portals/0/OpenContent/Files/566/16_of_2021_Covid-19_Restrictions_Rev-1.pdf) that covers the entry...
Forum: Electrical: Batteries, Generators & Solar 21-09-2021, 12:01
Replies: 22
Views: 2,582
Posted By Dsanduril
Re: 3ph 400V/50Hz yacht can't connect to the Shore power

In the delta-wye configuration with unbalanced load on the wye side, with an ideal transformer the system should measure zero imbalance. There will be circulating currents within the delta portion of...
Forum: Marine Electronics 21-09-2021, 08:25
Replies: 50
Views: 6,009
Posted By Dsanduril
Re: Are tee's ok on NEMA 2000 drop cables?

This is straight from the NMEA website (https://www.nmea.org/Assets/2012%20ibex%20full%20%20nmea%20installation.pdf) in a presentation on proper NMEA 2000 installation and multi-drop taps. Seems they...
Forum: OpenCPN 21-09-2021, 07:39
Replies: 29
Views: 3,505
Posted By Dsanduril
Re: AIVDM, AIVDO and Own Ship GPS data

I suspect this kind of problem really depends on individual setup/configuration. Some people will observe the issue and others won't. For instance, if you have a 7-satellite signal with one GNSS...
Forum: Marine Electronics 20-09-2021, 21:33
Replies: 50
Views: 6,009
Posted By Dsanduril
Forum: OpenCPN 20-09-2021, 14:46
Replies: 29
Views: 3,505
Posted By Dsanduril
Re: AIVDM, AIVDO and Own Ship GPS data

These problems seem to crop up the most with position information, and that is understandable. We frequently have multiple position information sources feeding into OpenCPN. The "priority" function...
Forum: Navigation 20-09-2021, 11:34
Replies: 34
Views: 14,918
Posted By Dsanduril
Re: What is this symbol on Navionics charts?

What's even worse, that symbols surround the dive flag symbol in the OP's original example. So Navionics has a dive site (Little Farnsworth) surrounded by a bunch of snorkelers with an "X" and the...
Forum: Deck hardware: Rigging, Sails & Hoisting 19-09-2021, 18:21
Replies: 12
Views: 1,605
Posted By Dsanduril
Re: Swedgeing tool

As Orion Jim said, it's a "roller swage tool".

https://www.arcuswire.com/product/wta270-548

Manual crimpers used to be NicoPress, but there are many varieties.
...
Forum: Anchoring & Mooring 19-09-2021, 17:26
Replies: 64
Views: 9,303
Posted By Dsanduril
Re: Expected Chain Lifespan

Our chain, of European origin, is eight years old, 6 years full time on the hook, two more years of summers. Regalvanized once, but now needs it again and the price of new is less.

I guess, as...
Forum: Deck hardware: Rigging, Sails & Hoisting 19-09-2021, 11:34
Replies: 23
Views: 5,889
Posted By Dsanduril
Re: MastFoil Chris White Designs

The foil is wrapped around the mast and rotates around it, but it is not the mast. The mast is a normal, stayed, non-rotating mast.
Forum: Deck hardware: Rigging, Sails & Hoisting 19-09-2021, 09:01
Replies: 23
Views: 5,889
Posted By Dsanduril
Re: MastFoil Chris White Designs

Is it really much different than any other split rig? It’s a high tech version of a staysail schooner or ketch/yawl. In terms of sail sizes and loads it has all the same advantages.

On the...
Forum: Engines and Propulsion Systems 17-09-2021, 11:20
Replies: 13
Views: 3,616
Posted By Dsanduril
Re: 4JH3 Yanmar alternator belt

REMF 6460 Outside Circumference = 47.27

25132-004600 crosses to A46 (at least in my book) Outside Length = 48

That 3/4" can make all the difference.
Forum: Engines and Propulsion Systems 17-09-2021, 09:19
Replies: 16
Views: 1,358
Posted By Dsanduril
Re: Nuclear Orange?

While diesel is safer than gasoline, the way we've always inerted tanks is to drop a chunk of dry ice into the tank. As it sublimes it fills the tank with heavier-than-air CO2 and a chunk of the...
Forum: Navigation 16-09-2021, 14:48
Replies: 141
Views: 23,708
Posted By Dsanduril
Re: Seen various people say to never use a phone/tablet for navigation. Why?

I can report that we have a cellular enabled iPad, because that's the only way to get an internal GPS, that has never had a cellular plan of any kind. Never even had a SIM inserted. We've owned it...
Forum: Multihull Sailboats 16-09-2021, 14:13
Replies: 387
Views: 49,912
Posted By Dsanduril
Re: Oceanvolt Servoprop regen tested by UMA

It's been done (although 30MW is a stretch :biggrin:)

https://www.alternativesjournal.ca/wp-content/uploads/2014/12/planetsolar-960x500.jpg
Forum: Electrical: Batteries, Generators & Solar 16-09-2021, 09:15
Replies: 3
Views: 608
Posted By Dsanduril
Re: M3-20B 10 AMP Breaker

See page 109 of the Technical Manual PDF (https://www.westerbeke.com/technical%20manual/200562_m3-20b_technical_man.pdf).

The 10A CB is connected to the glow plug solenoid and feeds the alternator...
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