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Author Topic:   compass installation question
litnin posted 07-02-2002 01:24 PM ET (US)   Profile for litnin   Send Email to litnin  
Am considering installing a Ritchie ss-1000 flush mount. Really hate to drill such a large hole in my unaltered console but I think that the deck and binnacle mount ones really look like an afterthought. Has anyone installed a flush mount directly in front of the helm and experienced problems with the compass readings due to magnetic interference from the steering box or electrical systems. By the way, it is going in a 87 Montauk. Thanks in advance.

Chris

kamml posted 07-06-2002 07:52 PM ET (US)     Profile for kamml  Send Email to kamml     
I installed a flushmount as a deckmount as I didn't want to cut the large hole. Prior to placement I checked for any effects from the VHF and the depthfinder. I moved the VHF a couple of times and found a spot where everything worked. My compass is on the centerline of the boat. Some folks suggest directly in front of the helm, I don't see any difference. I carded the compass with help from the GPS. It works great! Good luck with your install. Ken
dfmcintyre posted 07-06-2002 10:59 PM ET (US)     Profile for dfmcintyre  Send Email to dfmcintyre     
Chris -

I've installed flushmounted Danforth compasses in Montauks and Outrages with no problems.

Don

Tom W Clark posted 07-07-2002 02:21 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
litnin,

I had a flush mount Ritchie Navigator FN-50 (much like the SS-2000) on both my last Montauk and my Outrage. This is the top of the line compass that Whaler offered as an option in the 1970's. Many Whaler catalogs of that era show this compass in the top of the console. You certainly can mount one the same way but there are benefits to using the surface mount.

Yes, the mechanical steering will affect the compass quite significantly when turned from lock to lock. But remember that when you are actually steering a course by compass, the wheel will be more or less in the same position depending on load, trim and cross wind. The compass will not be affected under these circumstances.

There will still be deviation as on all boats and with all installations regardless of what type of compass you use. You need to be aware of that but a flush mount compass will work.

If you want to minimize the deviation then a deck mount or binnacle mount compass may be the way to go. It gets the compass itself up and further away from the magnetic influence of gear on or in the console like the steering gear and wiring.

Later Whaler catalogs show the center consoles with this type of compass. It's not a corner cutting move at all but rather a performance enhancing move, but I agree with you, the flush mount looks nicer and also consumes less space on top of the console.

litnin posted 07-07-2002 10:49 AM ET (US)     Profile for litnin  Send Email to litnin     
Thanks for the expert responses. I think that I have decided on a Ritchie SS-1100 Super Sport Deck Mount. Of course, my local Boater's World and West Marine don't carry that model. Said that it is not a popular item. Guess I will have to order.
Chris

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