Tachometer, New Old Stock PN 656K-03, P-51, P-47 Douglas as used in the RAF's

as used in the RAF's Cold-War-era Handley Page Victor strategic bomber

Across the inside of the ring are two horizontal

000 rpm in the case of later models (other dial)

The manual for the sight can be viewed at ibiblio

Measures ~5 inches diameter

Tachometer, New Old Stock PN 656K-03, P-51, P-47 Douglas as used in the RAF'sHere is an authentic original WWII era Electrical Tachometer Indicator Kollsman part number 656K 03 (US Army Type E 9), as used in US Army Air Force fighters P 38 Lightning, P 39 Airacobra, P 47 Thunderbolt, P 51 Mustang, and P 63 King Cobra. This specimen is New Old Stock and was received by Aero Antique in its original sealed carton dated November 28, 1944, and we are the first to have opened it since then. The Army type E 9 tachometer indicator