Description:

U.S.A.A.F. COMPENSATING AERIAL GUN SIGHT
Model K-11 gyroscopically-compensating gun sight, approx. 5" x 5 1/4" x 6 1/2", as utilized in the nose cone machine gun turret fitted to the B-24 heavy bomber. The control panel of the sight bears a metal plaque giving the model name and identifying the manufacturer as the Sperry Gyroscope Co. of Brooklyn, with the serial number "3362". The sight functions by projecting an illuminated reticule, which is gyroscopically calibrated based on the flight speed of the aircraft, as set by a dial on the control panel. This arrangement allowed a turret gunner to hit a target as it lined up with his reticule, rather than having to manually lead the target. Additional labels give bore sighting instructions and warn that the instrument is to be used only in a nose cone turret, and flip-up composite post sights allow for rapid aiming when necessary. A small glass lens on the left-hand side is cracked, else very good.

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April 18, 2018 10:00 AM EDT
Elkton, MD, US

Alexander Historical Auctions LLC

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Bid Increments
From: To: Increments:
$0 $99 $10
$100 $499 $20
$500 $999 $50
$1,000 $1,999 $100
$2,000 $4,999 $250
$5,000 $9,999 $500
$10,000 $19,999 $1,000
$20,000 $49,999 $2,500
$50,000 $99,999 $5,000
$100,000 + $10,000