Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura This is an original Cold-War-era

This is an original Cold-War-era Gunnery Manual for the USAF's strategic bomber Boeing B-36 and RB-36 Peacemaker

(The prism has a small chip in its lower left corner)

When you’re done with the top timer press the left button again

The A-1B sight was a gun-bomb-rocket sight used in versions of the F-84 and F-86 jet fighters

Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura This is an original Cold-War-eraHere is a WWII era Direction Finding (DF) Indicator as used in aircraft of the British Royal Air Force, such as bombers Avro Lancaster, Handley Page Halifax, and Vickers Wellington, and patrol bomber Short Sunderland. The DF Indicator received its signal from the R. 1155 receiver in the radio (wireless) comparment. By seeking a signal from a ground transmitter, the indicator displayed the direction of the transmitter in relation to the aircraft by