Airspeed Indicator, Sensitive, 700 Knots, Army Type F-1A, US Army Air Force, WWII F7F Tigercat When the pilot was lined

When the pilot was lined up correctly on this beam the signal received was steady and he knew he was heading straight towards the runway

When the wheels are retracted

The glass and case are intact and the dial markings are clear and precise

The left knob adjusts the indexing 'aircraft' within the dial to align the perspective of the pilot to the horizon indicator

Oxygen Pressure

Airspeed Indicator, Sensitive, 700 Knots, Army Type F-1A, US Army Air Force, WWII F7F Tigercat When the pilot was linedThe Army Type F 1A Airspeed Indicator was used across a number of US Army Air Corps and Air Force aircraft during WWII, including heavy bombers B 17, B 24, B 29, medium bombers B 25 and B 26, as well as light bomber A 20, according to the Accessories Interchangeability Chart dated Feb 1945. It was also used in versions of US Army Air Force WWII fighters P 38, P 39, P 40, P 47, and P 51. This F 1A was made by Kollsman, part number 739BU 03, and has a