Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura The thumbscrew on the end

The thumbscrew on the end of the device loosens

This is an original WWII-era training booklet published by the US Navy's Aviation Training Division in 1943

was part of the direction finding and landing system "PeilG V" and "PeilG 6" as well as the FuG 16 Z / ZY

The booklet describes and illustrates a number of aerial tactics in lay terms

This Shellback certificate is unique because it was from the US Navy's first aircraft carrier

Direction Finding DF Indicator of R.1155 Nav-Com System PV-1 Ventura The thumbscrew on the endHere 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