Feb 20, 2007 · Some compasses still use a water-alcohol mix using about 45% Ethyl. You can tell by smelling or rubbing the fluid between your fingers if its oil based. Unless you can draw a vacuum put …

Oct 6, 2006 · Basically says you can buy Ritchie compass fluid at West Marine or from a company like Viking Instruments - Marine Compasses, Compass Repair, Danforth Compass, Ritchie Compass .

Dec 1, 2012 · Ritchie compasses now use Isopar L® which is a very refined & purified version of Ordorless Mineral Spirits. From 1960 through about 2001 Ritchie used Odorless Mineral Spirits.

May 21, 2007 · One of the 2 mounted compasses on our boat has lost most of its liquid damping over the years and, before having to replace the unit, we thought we might have a go at refilling it. I …

Nov 18, 2019 · Wet compasses are notoriously difficult to read when there is the least little bit of turbulence. IOW, getting one for your car will not help you as a pilot. Your gyroscopic heading …

Jul 13, 2004 · Anyone make an overhead compass anymore? I''m looking for a compass I can install in the cabin to occasionally glance up and confirm the vane is still sending me in the right direction. I''m …

Feb 9, 2023 · BPSC Marine - the one-stop instrument repair of your compass or compasses BPSC Marine - Your one-stop instrument service for repairs of your compass or compasses, sales and free …

Aug 8, 2006 · Here in Canada we get to swing compasses every year. I have never seen a compass rose and virtually no one has a master compass. This task tends to get pencil whipped, which is why …

Nov 12, 2009 · I hate mnemonics, and my instructor gave me one by which to remember magnetic compass behavior: UNOS (undershoot north, overshoot south). But it's still not enough to help me. …

Mar 17, 2014 · The "factory calibration" was probably worthless the moment the compasses were installed. Even a GRP (fiberglass) boat has enough metal bits and pieces to give it its own magnetic …