K-3 automatic computing gun sight for upper turret

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Date Introduced
1940 ca.
Photographer
Richards, Mark
Dimensions
13 1/2 x 13 1/2 x 10 in.
Manufacturer
National Cash Register Company (NCR)
Copyright Owner
© Mark Richards
Location
Dayton, OH, US
Keywords
World War II
Object ID
102631027

The K-3 airborne computing gun sight was installed aboard planes such as the B-17. It aimed the machine gun based on its own motion and the range to the target.