Hi Bob. Hmm. Not sure how our weather would be hard on seals unless they were made of inferior material. Perhaps, if the compass was really old, they might be made of rubber which can perish. Ideally everything can come out of the cold and hide indoors over the winter, humans included.
Most compasses are filled with some form of alcohol which has a freezing point below -100C. All good quality compasses can be used at any temperature we might reasonably expect to experience, including sailing in arctic conditions. My conclusion is that it's generally more practical to leave the compass in place and reduce collateral damage while removing or installing or need for adjustment after installation. For me, that reality includes masts, instruments, batteries and most everything on the boat, except soft goods liable to mould intrusion and liquids that may freeze. For compass info see http://www.ritchienavigation.com Rich Knowles INDIGO LF38 Halifax, NS. On Nov 20, 2013, at 10:04 AM, Robert Abbott <robertabb...@eastlink.ca> wrote: Rich: The gentleman (Captain) you recommended to me about 5 years ago to repair my Danforth compass recommended removing it from the boat during our winter layup. He says the extreme cold is hard on the 'seals'. Not sure why but I didn't listen to him and leave the compass on the boat. Bob Abbott AZURA C&C 32 -84 Halifax, N.S. On 2013/11/19 11:28 PM, Rich Knowles wrote: > Interesting. I've had Ritchie Globemaster compasses for over 20 years and > have never removed them from the boats. No problems to date. > > Rich > > On Nov 19, 2013, at 23:20, Alex Giannelia <a...@airsensing.com> wrote: > >> So, way back when, in 1974, Edson built a pedestal that was supposed to fit >> a Ritchie compass. The top plate had 4 ¼” countersunk screw holes facing >> down in a diagonal pattern to fit the ¼” x 20 threads in the casting of the >> pillar. It also had 4 #10 or #12 countersunk holes facing up, presumably to >> act as studs to mount the base of the compass. >> >> Problem is, the holes facing up are not symmetrically drilled: 3 line up >> with the Ritchie base, and one misses by ½ a screw hole. So, Edson >> suggests, just use the downward holes to hold it all together. Problem is, >> Ritchie and others say to remove the compass during winter storage, so then >> the whole assembly can come apart. So what gives? >> >> >> Alex Giannelia >> CC 35-II 1974 to be renamed after re-launch >> TORONTO, Ontario >> >> ag@@airsensing.com >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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