From: "Keith" <klemmons@airmail.net> Subject: TWL: Barometer mounting To: <trawler-world-list@lists.samurai.com> Message-ID: <025501c36ca4$86ce4fd0$54885e42@keithlaptop1> Content-Type: text/plain; charset="iso-8859-1" >I guess mechanical barometers have to be installed exactly vertically, with no tilting. Perhaps it depends on the barometer mechanism. We have a Chelsea mounted in the main cabin on a vertical bulkhead, and it works fine (it does need to be tapped to make sure the pointer is accurate, but the instructions say to do this). However, we have a Maxim (?) barometer that we moved from the main cabin to the aft cabin when we got the Chelsea, and it's mounted on a bulkhead with perhaps a five or ten degree forward slant to it. But it works just fine in this position. One thing you might try if you haven't thought of this already is get one of the pre-made teak winch pads that's cut off at an angle to mount a winch on a sloping deck or cabin top. These come in different diameters, and are available from places like West Marine. Varnished up nice, this can make a good looking base for your barometer that compensates for the sloped bulkhead. If the pre-made bases have too great a slope for your bulkhead, you can buy a non-sloped base and then cut it or shave it off at the correct angle for your application. I did this when we installed a large CRT chart plotter in our boat shortly after we purchased it. Someone had made a nice teak consol that held the VHF, intercom, depth finder, and Loran-C in front of the helm station. The top of the consol slopes down away from the helmsman. I wanted a level mounting for the plotter, so I measured the angle of the top of the consol and went to West Marine and bought one of the large winch pads. I had to laminate a small block of teak to the bottom of the pad to accomodate the angle of the consol top, but I then took the thing to a commercial woodworking shop (I don't have the tools to do this sort of thing properly myself). They cut the bottom of the winch pad/block lamination off at the correct angle, I varnished it, and I had a nice looking, solid and level base on which to mount the plotter. I've also used the smallest size angled pad to mount a GPS mushroom antenna on the flybridge consol and a mid-size angled pad to mount a base for a portable GPS chart plotter on the same consol. The consol surface is sloped, so the angled pads make it easy to mount things like this relatively level. Maybe something like this will work for your Chelsea. _______________ C. Marin Faure GB36-403 "La Perouse" Bellingham, WA