Airspeed Indicator, 500MPH, Army Type D-7, US Army Air Corps, WWII C-47 Used to alter the Heading

Used to alter the Heading Index

This is an original Cold-War-Era US Air Force Manual Bombs and Bombing Systems for Aircraft Observers dated January 1956

the precursor to today's US Air Force

The inside of the glass could use some cleaning

and responsible as a bomb-aimer

Airspeed Indicator, 500MPH, Army Type D-7, US Army Air Corps, WWII C-47 Used to alter the HeadingThe 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 Kollsman, part number 586K 026. The text "AC