Airspeed Indicator, 500MPH, Army Type D-7, US Army Air Corps, WWII Spitfire 5 inches diameter and 2

5 inches diameter and 2

Air Force US Army Type C-14 (also AN-5761-1)

for a dual engine aircraft

made by Waltham to Air Corps US Army spec #94-27749

automatically firing all rocket pairs in 10 second intervals

Airspeed Indicator, 500MPH, Army Type D-7, US Army Air Corps, WWII Spitfire 5 inches diameter and 2The Army Type D 7 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 D 7 was made by Pioneer, part number 1426 4H A7. It is in