Wheel and Flap Position Indicator, Type A-3 HUP The dial measures 3

The dial measures 3

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

77 hours) before completely turning over

The Magnesyn compass indicator received an electronic signal from a remotely located compass transmitter (which avoids magnetic interference from the engines and other instruments)

The K-13 Compensating Gunsight

Wheel and Flap Position Indicator, Type A-3 HUP The dial measures 3This is a WWII era Wheel and Flap Position Indicator, Type A 3, as used in aircraft of the US Army Air Force and US Navy with tail wheel landing gear. According to the Maintenance and Interchangeability Chart dated Feb 1945, the A 3 indicator was used in early versions of fighter P 47 Thunderbolt (see image of the P 47 instrument panel from its flight manual dated 1943) and transport C 46 Commando. It was also used in the fighter P 40F Warhawk