Plan Range Finder (Stadimeter) Mk IIA 1936 for Parts P-51 The receiver function tunes from

The receiver function tunes from 100-1750 kHz across 4 bands

See photo of the location of the instrument on the Flight Engineers instrument panel from the C-121 flight manual dated 1958

Flap Position Indicator

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

Plan Range Finder (Stadimeter) Mk IIA 1936 for Parts P-51 The receiver function tunes fromThis 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.