NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Perpendicularity
From: Gary Harkins
Date: 2004 Oct 12, 17:44 EDT
From: Gary Harkins
Date: 2004 Oct 12, 17:44 EDT
In a message dated 10/12/2004 2:03:27 PM Eastern Standard Time, george@HUXTABLE.U-NET.COM writes:
Has this
failure been explained, or even mentioned, in a publication? Can any list
member explain the cause, please, for our benefit?
George:
I believe that I read this when I purchased the deluxe index mirror for my Astra IIIB. I assumed that it had to do with the fact that the sextant was built for a rear surfaced mirror and that the reflective surface was no longer on the pivoting axis. I'm not sure about the mechanics involved that would require this.
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)
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)
