compass for steel boat

Discussion in 'Metal Boat Building' started by greenwaterdrunk, Aug 6, 2005.

  1. greenwaterdrunk
    Joined: Aug 2005
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    greenwaterdrunk New Member

    Does anyone know of an alternative to a binacle mount compass with quadrantial spheres? I am working on a steel cutter, with steel house, and there is no convient/secure place to mount any other than a bulkhead style compass.
     
  2. sailrjim
    Joined: Mar 2005
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    sailrjim Junior Member

    You could try a Sestral Moore. I think they may be in production again; not certain. They are/were made in the UK. It is externally gimballed and was originally advertised as being designed specifically for steel boats. I have an old one on my steel cutter. It was tedious to swing, and is not accurate at large angles of heel. Supposedly this is curable by installation of a heeling magnet but I do not have one installed. This compass seems well constructed and has been in use on my boat for fifteen years continuously.

    Otherwise, I would suggest some of the electronic compasses on the market.

    BTW, my compass is mounted atop the hatch turtle which is made of wood.

    Jim
     
  3. JimCooper
    Joined: Feb 2005
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    JimCooper Junior Member

    I find the modern electronic (fluxgate) ones are so much more reliable in a steel vessel, you just motor around in a circle and it all self calibrates.

    No more compass pointing to the winch handle while you run ashore!

    cheers
    Jim
     
  4. MikeJohns
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    MikeJohns Senior Member

    The fluxgates are vastly superior these days, minimal power consumption repeaters throughout the boat, self calibrating and no northern southern hemisphere re-weighting required, No anomolies from materials in the helmsmans pocket , or the knife left by the compass.
     
  5. cyclops
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    cyclops Senior Member

    How about a hand held or dash mtd. GPS?
     
  6. MikeJohns
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    MikeJohns Senior Member

    That can be turned off by someone off the vessel.
     
  7. cyclops
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    cyclops Senior Member

    Boy Scout compass tied to your belt and stored inside your pocket?
     
  8. CG_H733_Driver
    Joined: Dec 2005
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    Location: Bowie, MD

    CG_H733_Driver New Member

    Fluxgate's the way to go...extremely reliable, no maintenance, "plug and play" technology, and best of all - INEXPENSIVE...
     
  9. FAST FRED
    Joined: Oct 2002
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    Location: Conn in summers , Ortona FL in winter , with big d

    FAST FRED Senior Member

    Saw your addresstried to send a private message , but the return address wouldnt work, Message follows,


    Saw your posting , and address and thought perhaps you would have better sources with DOD stuff than I do.

    We have a 1967 US Navy 50ft Personelle Launch , also known as a 50ft Utility boat.

    Open boat with GM DD 6-71 as power.

    It was made by Uniflite and we have a lobster house on it, and use her as primitave yacht in New England area .

    I'm wondering if you could find any info on obtaining the operators manual for this boat?

    Knowing the Navy there is a "book" for everything.

    We just cant seem to Google anyplace that has a copy , or even find a listing.

    Private response would be appreciated.

    Thanks,

    FAST FRED
     
  10. CG_H733_Driver
    Joined: Dec 2005
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    Location: Bowie, MD

    CG_H733_Driver New Member

    For some reason, it's not letting me send a private message or an email...

    I'm back in the office on Tuesday, so I will run something down. Doubt we have anything readily accessible, so I'm going to have to dig a little.

    I'll also run down a buddy of mine over at NAVSEA's Combatant Craft Division who "owes me a couple of favors."
     

  11. Nels Tomlinson
    Joined: Nov 2004
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    Location: Juneau, Alaska

    Nels Tomlinson Junior Member

    Yes, there is a company which is making them now, with a website at: http://www.sirs.co.uk/marine.htm. No clue whether they're reputable or whether they're making a quality product.
     
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