Airspeed Indicator, Sensitive, 700 Knots, Army Type F-1A, US Army Air Force, WWII F7F Tigercat The left knob adjusts the

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

and is not visible in the photo

Measures ~ 6 x 6 x 7 inches deep

Oxygen Pressure

Airspeed Indicator, Sensitive, 700 Knots, Army Type F-1A, US Army Air Force, WWII F7F Tigercat The left knob adjusts theThe 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