Flap Position Indicator B-24 Liberator, PB4Y Privateer, WWII GE DJ11 Oscar Fighter This indicator has a serial

This indicator has a serial number prefix "AF-43"

The center knob is to set the desired course and to cage the gyro

A very cool collection of rare development documents on a vital technical project

The VOR-102 was used in a variety of aircraft during this era

Above the center axis is a window to display barometric pressure in millibar

Flap Position Indicator B-24 Liberator, PB4Y Privateer, WWII GE DJ11 Oscar Fighter This indicator has a serialThis is a Flap Position Indicator as used in the WWII era Consolidated US Army Air Force B 24 Liberator Heavy Bomber (see 2 cockpit photos and photo from the B 24 Pilots Manual dated 1944) and the US Navy's PB4Y4 Privateer Patrol Bomber (see photo from Flight Manual dated 1945). Made by General Electric, Type DJ11. The indicator provided visual information on the angle of extension of the wing flaps during take off and landing, measured from full up