A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Paul Brewer
Date: 2019 Jan 24, 13:17 -0800
The rotor in the sextant is spun up to several Thousand rpm from what I can see of the model I have.
From what I have read the device was spun up inside the submarine then carried up the ladder to the conning tower top for an observation.
It must have been a nightmare to operate what with weight and size.