Free Air Temperature Indicator, Type C-8 US Army Air Corps Weston 728 T-20 Korean War The periscope would be positioned

The periscope would be positioned to view the terrain directly below the fuselage while in flight

Type 98 Otu

the flight engineer controlled the degree to which each engine's intercooler flaps were open and thus managed the carburetor air temperature

Note that the indicator shipped will not be the identical indicator in the photos but substantially similar in appearance

Free Air Temperature Indicator, Type C-8 US Army Air Corps Weston 728 T-20 Korean War The periscope would be positionedThis is an exceptional example of the WWII era electrical Free (i. e., ambient) Air Temperature Indicator, US Army Air Corps Type C 8, as used in versions of the heavy bomber B 24 (see photo of instrument panel from a B 24 Flight Manual showing the location of the indicator), also medium bombers B 25 C D Mitchell and B 26 B C Marauder, transports C 87 and C 45, and trainers AT 7 and AT 11, according to the Maintenance Interchangeability Cross