Reply
 
Thread Tools Search this Thread
 
Old 05 May 2010, 17:07   #1
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
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.

Many thanks,

kerny.
__________________
kerny is offline   Reply With Quote
Old 05 May 2010, 18:15   #2
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
I'd go for a Plastimo Offshore which is purpose made for powercraft.
__________________
Mollers is offline   Reply With Quote
Old 05 May 2010, 18:34   #3
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,913
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.
__________________
willk is offline   Reply With Quote
Old 05 May 2010, 18:36   #4
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
Thanks Mollers, just googled it and some are comming up at a reasonable price £49.99.

Many thanks,

Steve.
__________________
kerny is offline   Reply With Quote
Old 05 May 2010, 19:18   #5
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
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,

kerny.
__________________
kerny is offline   Reply With Quote
Old 05 May 2010, 19:22   #6
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,913
Quote:
Originally Posted by kerny View Post
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!
__________________
willk is offline   Reply With Quote
Old 05 May 2010, 19:35   #7
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
Ahh well it never is that easy is it, power tools it is then...l.o.l.
__________________
kerny is offline   Reply With Quote
Old 05 May 2010, 19:58   #8
Member
 
Puffin's Avatar
 
Country: UK - Scotland
Town: Argyll
Boat name: Puffin
Make: Humber Destroyer
Length: 6m +
Engine: Suzuki 90
MMSI: 235075764
Join Date: Sep 2009
Posts: 147
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
__________________
Member of the ebay EPIRB club!
Puffin is offline   Reply With Quote
Old 05 May 2010, 20:46   #9
Member
 
Lets go boating's Avatar
 
Country: UK - England
Town: Staffordshire
Boat name: Pacific 9134
Make: Halmatic
Length: 6m +
Engine: 300hp Suzuki
MMSI: 232043887
Join Date: Oct 2005
Posts: 623
Quote:
Originally Posted by Mollers View Post
I'd go for a Plastimo Offshore which is purpose made for powercraft.
plastimo are great
__________________
Photographer and Youtuber @challengebritain
www.challengebritain.uk
Lets go boating is offline   Reply With Quote
Old 05 May 2010, 20:56   #10
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
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.
__________________
kerny is offline   Reply With Quote
Old 05 May 2010, 21:00   #11
Member
 
Country: UK - England
Town: NW& wherever the boat is!
Boat name: depends on m'mood!
Make: Humbers/15-24m cats
Length: 6m +
Engine: etec130/big volvos
MMSI: many and various
Join Date: Nov 2001
Posts: 1,816
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.
__________________
Dave M
www.wavelengthtraining.co.uk
wavelength is offline   Reply With Quote
Old 05 May 2010, 21:05   #12
Member
 
Lets go boating's Avatar
 
Country: UK - England
Town: Staffordshire
Boat name: Pacific 9134
Make: Halmatic
Length: 6m +
Engine: 300hp Suzuki
MMSI: 232043887
Join Date: Oct 2005
Posts: 623
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
__________________
Photographer and Youtuber @challengebritain
www.challengebritain.uk
Lets go boating is offline   Reply With Quote
Old 05 May 2010, 21:47   #13
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
Quote:
Originally Posted by wavelength View Post
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.
__________________
Mollers is offline   Reply With Quote
Old 05 May 2010, 22:25   #14
Member
 
Country: UK - England
Town: NW& wherever the boat is!
Boat name: depends on m'mood!
Make: Humbers/15-24m cats
Length: 6m +
Engine: etec130/big volvos
MMSI: many and various
Join Date: Nov 2001
Posts: 1,816
Quote:
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
__________________
Dave M
www.wavelengthtraining.co.uk
wavelength is offline   Reply With Quote
Old 05 May 2010, 22:31   #15
Member
 
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
Quote:
Originally Posted by wavelength View Post
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.
__________________
Mollers is offline   Reply With Quote
Old 05 May 2010, 22:46   #16
Member
 
Country: UK - England
Town: NW& wherever the boat is!
Boat name: depends on m'mood!
Make: Humbers/15-24m cats
Length: 6m +
Engine: etec130/big volvos
MMSI: many and various
Join Date: Nov 2001
Posts: 1,816
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.
__________________
Dave M
www.wavelengthtraining.co.uk
wavelength is offline   Reply With Quote
Old 05 May 2010, 23:16   #17
Member
 
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
Quote:
Originally Posted by wavelength View Post
some of us were doing long hauls on powerboats with a watch and compass years ago,
A watch? There's posh.
__________________
Downhilldai is offline   Reply With Quote
Old 06 May 2010, 14:19   #18
Member
 
kerny's Avatar
 
Country: UK - England
Town: Ashton-under-Lyne Lancs
Boat name: IMOGEN
Make: Air-Craft 5.4
Length: 5m +
Engine: Suzuki df70a
MMSI: 235087492
Join Date: May 2010
Posts: 7,078
RIBase
Send a message via Skype™ to kerny
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.
__________________
kerny is offline   Reply With Quote
Old 06 May 2010, 14:24   #19
DM
RIBnet supporter
 
Country: UK - England
Boat name: Little Wing
Make: Searider 5.4
Length: 5m +
Engine: Tohatsu 90
Join Date: Aug 2002
Posts: 1,069
Quote:
Originally Posted by Downhilldai View Post
A watch? There's posh.

He's only kidding. He meant a peg board.
__________________
DM is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 18:05.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.