NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant Terms
From: Chuck Taylor
Date: 2007 Oct 22, 07:26 -0700
From: Chuck Taylor
Date: 2007 Oct 22, 07:26 -0700
The U.S. Coast Guard has historically used sextants for taking horizontal angles in order to precisely place aids to navigation such as buoys. Given that this example has no shades, I suspect that that was how this unit was used. Chuck Taylor 48 N 122 W Nicol�s de Hilster wrote: > There are surveyors sextants (C. Plath for instant) that have an additional pentagon prism attached. This prism adds 90 degrees to the observed angle, so measuring 140 degrees should be no problem with that prism attached. One has been for sale on E-bay recently: http://cgi.ebay.co.uk/US-Coast-Guard-Weems-Plath-Sextant-w-Case_W0QQitemZ300160900331QQihZ020QQcategoryZ37971QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Nicol�s __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
