KOLLSMAN Bubble Navigational Sextant Aircraft Periscope Vintage w/Case B-31

Description

U.S. MILITARY AIRCRAFT PERISCOPE SEXTANT WITH IT'S STORAGE CASE
MADE BE KOLLSMAN INSTRUMENT CORP.
( Sold for Display only )I do not have any way of testing the Sextant -
Therefore I do not know weather it is in working condition or not.
In great cosmetic condition.  Its nice and clear when you look through it.
There's a rotisserie of different color lenses when you turn the one knob it changes the color to darker--red--green
Also there's a knob to change the view from straight forward to straight up.
I do NOT see the Bubble and Cross pieces through the eyepiece.
Sounds like a timer (ticking) when I press the Start Lever
MS Part No. MS28011-5, MIL-S-5807C.The periscope comes with a fiberglass carrying case and one cable attachment.
Military Issue USAF Aircraft Periscope Sextant
This periscopic aircraft sextant was the means of navigation in the dark days before electronic GPS systems.
These sextants were used from the 1950s into the early 2000s.
The periscopic sextant was not integral to the aircraft, so maintained separately, but taken onto every flight.
The power supply for the sextant was taken from the aircraft DC power source.
The sextant uses a bubble level finder, and a crosshair sight to line up with the horizon and the stars, telling you in which direction you are going.
This is the periscopic sextant that was used by the USAF and CAF during the last 45 years.
It was used on the B-47, B-52, C-54, C-97, C-118, C-119, C-121, C-124, KC-135, and other aircraft.
"Sextant, Aircraft, Periscopic MS28011-5"
Mil Spec: MIL-S-5807C
Mfrs P/N: 1471C-02
Contract no.: N383 (19-383) 81247A
Stock No.: RQ6605-515-4834-VSCQ
6225-1471C-02
Made in the USA by Kollsman Instrument Corporation
Visit My eBay Store: Tammy's Surplus
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