Gun Sight, Ball Turret, Type K-4 Sperry, B-17, B-24 RAAF operations
$1068.00
Description
operations
and shutter speed is adjustable from 125 to 500
in its original bakelite case
With over 400 pages
Gun Sight, Ball Turret, Type K-4 Sperry, B-17, B-24 RAAF operationsThis is an electro mechanical, automatic Type K 4 Computing Gun Sight used in the Sperry ball turret in WWII era heavy bombers such as the B 17 Flying Fortress and B 24 Liberator. Mounted within the ball turret, it hung from the 'ceiling' of the turret just in front of the forehead of the turret gunner (see illustration from turret manual). The gunner took aim at his target by looking through the glass screen mounted on an optic head the bottom of the
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