Fuel Quantity Indicator, Front-Reserve Tanks, P-38 Lightning, GE 8DJ12LAN F-8 Crusader Turning the set course knob

Turning the set course knob rotates the course dial to bring the desired track figure under the course index

hence the suction gauge in the upper right corner to indicate the performance status of the pneumatic system

likely for a large multi-engine aircraft

The item shipped will vary slightly from the one illustrated here

It thus serves as the VHF antenna and the forward support for an HF antenna

Fuel Quantity Indicator, Front-Reserve Tanks, P-38 Lightning, GE 8DJ12LAN F-8 Crusader Turning the set course knobHere is a fine specimen of a Fuel Quantity Indicator for the Reserve (Front) fuel tanks as used in versions of the infamous US Army Air Force twin tailed fighter P 38 Lightning, made by General Electric, Model 8DJ12LAN The P 38 had two fuel quantity indicators.. this was for the front reserve tanks, each holding 0 60 gals. The indicator has two pointers (the second one is barely visible in the photo as it rests behind the other) one for each tank. See