Next message: CarlZog: "Re: Role of CN at sea, was RE: Averaging sights ..."
In a message dated 10/12/2004 4:12:53 PM Eastern Standard Time,
writes:
And if my thinking is right on this, it does make no
sense--until you add in the context of the mirror holder, and whether/how
the maker has designed the mirror holder and the instrument as a whole to be
used with front or rear silvered glass.
I think all of your points are valid, but here's the catch as I see it, the
cylinder or domino method (for front silvered mirrors) works equally well for
rear silvered mirrors. Not so the other way around (using the arc). So if you
are not sure you can use the cylinder method and still know that you have got
it right.
Gary Harkins C400 #140 "Cygnus"
Website http://www.hometown.aol.com/htycgary/myhomepage/index.html
Harbour Towne Marina, Muskegon, Michigan Slip C-28
Harbour Towne Yacht Club, Life Member
C400 National Association
United States Power Squadrons-JN
NRA Life Member
MCRGO (Michigan Coalition for Responsible Gun Owners)
JPFO (Jews for the Preservation of Firearms Ownership)
