instrument sizes

Bill Chernoff wrote:
Can anyone provide a diagram of a 2 1/4 inch instrument cutout? I found one
for the 3 1/8, but not the smaller size.

Bill, in the last chapter of my Kitfox build manual, there is a diagram
for that:

A big 2 5/16" (58mm) hole, and four small #18 (0.1695, just a shade
smaller than 11/64") screw holes with centers spaced 2 5/8" (67mm) apart
(ie, the little hole centers are 1 5/16" from the center of the big
hole). For comparison, the equivalent numbers on the next diagram for 3
1/8 instruments are 3 1/8" and 3 1/2" respectively.

Hope this helps. I have everything for my panel and none of it is 2
1/4, so I can't say either way if the diagram is accurate. I haven't
got to building up the panel yet anyway. FWIW, I have so far found very
few (count on one hand) errors in the manual.


Jim

PS-
Not trying to talk down to you in my description either Just playing
it safe so someone with the same question can archive this thread down
the road. Speaking of, the manual instructs to measure all of the holes
first before drilling, otherwise it's too easy to get the screw holes to
not quite line up (!).