Plan Range Finder (Stadimeter) Mk IIA 1936 for Parts P-51 Flap Position Indicator

Flap Position Indicator

Above its center and to the left and right are twin fittings for a yoke-mounted attachment

original WWII-era Erection and Maintenance Instruction Manual for the USAAF Lockheed P-38L Lightning Fighter

including airships and rotary craft

Examples of aircraft which used this indicator are versions of the C-47 Skytrain transport

Plan Range Finder (Stadimeter) Mk IIA 1936 for Parts P-51 Flap Position IndicatorThis is an incomplete authentic British Plan Range Finder Mk IIA, Horizon and Bubble Type, dated 1936. It comes with a leather carrying case. The serial numbers on the instrument and the case are different. It is missing one side plate, a mirror, and possibly a few other parts. The strap on the case is broken. It is offered here for display or for parts. The instrument measures ~ 8 in x 4 in x 2 in.