USAAF Radio Altimeter. ID-14/ARN-1 for Radio Set AN/APN-1. C-47
Here we have anice USAAF/ AAF Radio Altimeter which was fitted to several types of aircraft including the TBN Avenger, Catalina and the C-47.
The Radio Altitude Indicator, ID-14/ARN-1 was a component of Radio Set AN/APN-1, used to measure and indicate to the pilot the altitude over the terrain during flight. Made General Electric
It is in exceptional condition given its age. The lower left knob switches on the indicator, and the top right knob switches the measured range between 0-400 ft to 400-4000 ft and back. The dial and glass are intact. Measures 3.25 inches diameter by ~5 inches deep. The last photo shows it mounted in a C-47 panel
Postage shown is for UK delivery only