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Old 05 May 2010, 16:07   #1
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compass.

Hi all, what is the best type of compass to fit on a rib and would it be best fitted on the consul. I thought that I had got everything needed to get started then suddenly remembered about an important piece of kit COMPASS...just wondered if the stainless steel grab rail would interfere with it. p.s. not too expensive as it's cost me a fortune already l.o.l.

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Old 05 May 2010, 17:15   #2
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I'd go for a Plastimo Offshore which is purpose made for powercraft.
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Old 05 May 2010, 17:34   #3
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Mollers gives good compass advice.

The handrail question is an interesting one. Stainless generally has low magnetic properties, but these can be increased by bending and welding. So maybe yours is. You can test it with a compass!

I'm seeing more and more small compasses fixed directly to perspex windshields - not sure is this applies to your rig.
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Old 05 May 2010, 17:36   #4
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Thanks Mollers, just googled it and some are comming up at a reasonable price £49.99.

Many thanks,

Steve.
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Old 05 May 2010, 18:18   #5
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Quote:
Originally Posted by willk View Post
Mollers gives good compass advice.

The handrail question is an interesting one. Stainless generally has low magnetic properties, but these can be increased by bending and welding. So maybe yours is. You can test it with a compass!

I'm seeing more and more small compasses fixed directly to perspex windshields - not sure is this applies to your rig.
Hi willks, I have not tried it yet it was just a thought, but fitting it on the perspex shield sounds a good solution and maybe this can be done using a suction cup like on a car sat nav,

Cheers,

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Old 05 May 2010, 18:22   #6
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maybe this can be done using a suction cup like on a car sat nav,
'fraid not - it's strictly a powertool job - zoom zoom!
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Old 05 May 2010, 18:35   #7
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Ahh well it never is that easy is it, power tools it is then...l.o.l.
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Old 05 May 2010, 18:58   #8
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Asked the same question myself a while back, got some useful answers.

http://rib.net/forum/showthread.php?...hlight=compass

Having said that, I'm still not fully decided on which to get, Plastimo Offshore 95 at Marine Store looks a good buy and is the favourite at present.

http://marinestore.co.uk/Merchant2/m...tore_Code=mrst
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Old 05 May 2010, 19:46   #9
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I'd go for a Plastimo Offshore which is purpose made for powercraft.
plastimo are great
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Old 05 May 2010, 19:56   #10
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Thanks for the link to the posts puffin, and it looks as though if you keep it away from speakers on the vhf it should be accurate, I will be using my handheld so there shouldn't be a problem with the compass fitted on the wind shield. I will be looking for a plastimo offshore. Thanks everyone for your sound advice which is invaluable for us newbies.
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Old 05 May 2010, 20:00   #11
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whatever the make you need a powerboat compass which is more heavily damped than a sailboat jobee. However some still have the tendency to spin no matter what it says on the pack when you rattle across waves, I would imagine that fitting to a screen, instead of a more solid surface, is likely to induce a spinning compass.
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Old 05 May 2010, 20:05   #12
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just thinking about it, a friend has a danfort (danforth) not sure on spelling, and they are pretty good, so just check them too aswell as plastimo
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Old 05 May 2010, 20:47   #13
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whatever the make you need a powerboat compass which is more heavily damped than a sailboat jobee. However some still have the tendency to spin no matter what it says on the pack when you rattle across waves,
Do they? Wouldn't know, I never look at the thing. I've got a GPS jobee.
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Old 05 May 2010, 21:25   #14
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Do they? Wouldn't know, I never look at the thing. I've got a GPS jobee
some of us were doing long hauls on powerboats with a watch and compass years ago, then decca (which invariably lost the plot in the fog and left ya with the compass again), then gps and finally gps plotters. Others havent had the delight of wondering where the land is after a few hours on a compass course. We talk about it all the time in m'old folks home where the kids have put me!!
Those who come on courses here steer to a compass as well as a plotter on level2, on advanced and advanced exams they do longer passages in the dark on the compass. Its all part of seamanship. Having said that I will be out on the commercial boat next week again with the heaters on and relying on the plotter, radar etc etc
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Old 05 May 2010, 21:31   #15
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some of us were doing long hauls on powerboats with a watch and compass years ago, then decca (which invariably lost the plot in the fog and left ya with the compass again), then gps and finally gps plotters. Others havent had the delight of wondering where the land is after a few hours on a compass course. We talk about it all the time in m'old folks home where the kids have put me!!
Those who come on courses here steer to a compass as well as a plotter on level2, on advanced and advanced exams they do longer passages in the dark on the compass. Its all part of seamanship. Having said that I will be out on the commercial boat next week again with the heaters on and relying on the plotter, radar etc etc
Sorry, I was being facetious.
My 'peasoup' experience is detailed on this site somewhere.
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Old 05 May 2010, 21:46   #16
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be careful cos now that age concern and t'other lot have merged - I'll have an even bigger pool of muscle with zimmers to send round ta see ya.
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Old 05 May 2010, 22:16   #17
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some of us were doing long hauls on powerboats with a watch and compass years ago,
A watch? There's posh.
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Old 06 May 2010, 13:19   #18
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Well chaps , it looks like fitting one for cosmetic purpose, and carry a cheap orienteering compass in my dry suit pocket, to use for accuracy, or get a GPS l.o.l.
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Old 06 May 2010, 13:24   #19
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A watch? There's posh.

He's only kidding. He meant a peg board.
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