Tachometer, New Old Stock PN 656K-03, P-51, P-47 Douglas used to measure the exiting

used to measure the exiting temperature of the exhaust gases of a jet engine

Measures 10

Maximum Allowable

The subsequent Kollsman model 716K-02

This critical component was installed at the nose gunner's station in the B-36

Tachometer, New Old Stock PN 656K-03, P-51, P-47 Douglas used to measure the exitingHere 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