WWII-era U.S. Navy aircraft radar/radio unit marked RT-7/APN-1 Personalization Picks or major structural failures visible—appears

or major structural failures visible—appears demilled and ready for restoration to static display

commonly associated with Pennsylvania National Guard-style insignia or unit display markings

semi-buckhorn rear (adjustable on later models)

• Scope-mounted anti-cant level for long-range accuracy

WWII-era U.S. Navy aircraft radar/radio unit marked RT-7/APN-1 Personalization Picks or major structural failures visible—appearsOriginal WWII era U. S. Navy aircraft radar radio unit marked RT 7 APN 1, 27 volts DC. This was part of the AN APN 1 radar altimeter system, used in aircraft to measure altitude above terrain water by radio radar signal. The front panel includes marked connections for transmitter antenna, receiver antenna, automatic pilot, calibration adjustments, limit switch, limit indicator, indicator, battery input, spare fuse, and 3 amp fuse. The unit retains its