NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Refill the bubble reservoir: periscopic MS28011-1-5 sextant
From: David Pike
Date: 2022 Jul 19, 12:57 -0700
From: David Pike
Date: 2022 Jul 19, 12:57 -0700
Paul Loubris you wrote: I can't seem to center the bubble after tipping and opening and and closing the sizing knob. ... An old B52 Nav 1962-67. Aged 84
Paul
If you're sure you've got a bubble, it might just be you're not holding your sextant as steadily as you used to. As a first try, put it on a window ledge and use playing cards as shims under the sextant to try and center the bubble that way. I've also used a spirit level laid across the top of my aircraft sextants to start me off. If that doesn't work, it must be more serious. DaveP
An old Vulan Nav 1969-80. Aged 78