Tachometer, Mk V, US Navy 88-I-2500 Pre-WW2 Its use was carried over

Its use was carried over to aircraft used in the Korean War

was used across all aircraft of the US Army Air Force during WWII

The keying switch is stiff

Measures 12 in x 6

Tachometer, Mk V, US Navy 88-I-2500 Pre-WW2 Its use was carried overThis is an original WWII era electrical aircraft Tachometer, Mark V FSSC 88 I 2500, as used across aircraft of the US Navy, such as the SBD Dauntless Dive Bomber, TBM Avenger Torpedo Bomber, and F6F Hellcat Fighter. Pioneer Bendix part number 2222 IF2 A. Range 0 3500 RPM, with the pointer indicating RPM hundreds and the inset window at 9 o'clock indicating RPM thousands. This tachometer is in exceptional condition given its age. Measures 3. 25 inches