NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sextant & H-bomb test
From: David Pike
Date: 2022 May 31, 00:31 -0700
From: David Pike
Date: 2022 May 31, 00:31 -0700
I would say they’re using these https://www.trinitymarine.co.uk/shop/a-royal-navy-sextant-by-henry-hughes-son-unpolished-brass-scale/ . At least one shade appears to be in. They appear to be measuring about 45 degrees. They would have been many miles away, so by the time the cloud got to that height the glow wouldn’t have been quite so bright. See Operation ‘Grapple’ https://nuclearweaponarchive.org/Uk/UKTesting.html . Also https://film.iwmcollections.org.uk/record/1181 . Yes, in 1958 people really did speak like that. DaveP
