Tachometer, Victometer Centrifugal, 1920s USSR dated Oct 29

dated Oct 29

We have not yet identified the type of RCAF aircraft which may have used this indicator

This is an excellent specimen of the Contact Altimeter (Kontakt-Hohenmesser) Fl

made by Bendix and labeled for engines #1 & #2 and 3 & #4

Tachometer, Victometer Centrifugal, 1920s USSR dated Oct 29This is a WWI or Post WWI vintage aircraft or laboratory tachometer "Victometer" made by the Jos W Jones Co. This is a centrifugal tachometer: as the rotation of the engine shaft rotates a cable attached to the case, flyweights rotate around an internal axis. The weights move outwardly due to centrifugal force, which pull a brace attached to the spring loaded pointer. As the brace is pulled by the centrifugal force of the weights, the pointer is