Compass, Direct Reading Magnetic, Japanese Army Type 98 Kou F-82 Mounted under the wing or

Mounted under the wing or on the fuselage

used in determining proper elevation and deflection (direction) when operating field artillery weapons

made by Kollsman (part number 621KN-04)

As the screw is turned

The student aviator is assumed to be training his aim on the lighted spotlit image

Compass, Direct Reading Magnetic, Japanese Army Type 98 Kou F-82 Mounted under the wing orThis is a WWII era Direct Reading Magnetic Compass Type 98 "Kou" produced by the Tokyo Aero Indicator Company and used in aircraft of the Japanese Army, such as fighters Type 1 Oscar, Type 2 Nick, Type 3 Tony, Type 4 Frank, and Type 5 Ki 100, according to the Funatsu Aviation Instruments Museum website. See photo of Tony instrument panel showing the location of this compass from a book by WWII Japanese Aircraft researcher Robert Mikesh. The Kou