NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Averaging sights on commercial vessels
From: Stacy Hanna
Date: 2004 Oct 7, 18:49 -0400
From: Stacy Hanna
Date: 2004 Oct 7, 18:49 -0400
Navy ships started using Sat Nav in 1962 or 1964 depending on the source you use. It was released for commercial and public use in 1967 however it was the early to mid 70's before its use outside of the military became widespread due to the cost of the receivers. -----Original Message----- From: Navigation Mailing List [mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM] On Behalf Of Alexandre Eremenko Sent: Thursday, October 07, 2004 18:18 To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM Subject: Re: Averaging sights on commercial vessels Trevor, Thank you very much for your explanation. I forgot about Sat Nav indeed. Do you know when approximately did they start using it? (I suppose, not earlier than late 70-s). The manuals I cited were written in the 60-s when no Sat Nav existed. I am just trying to understand when CelNav was replaced by various satellite-based systems as a main tool of finding position on commercial and navy ships. Alex. P.S. LORAN only works near a shore, correct? The only precise means available in the middle of an ocean are CelNav and satellite-based systems, correct? A
