Tachometer, Electrical, 400-3600 RPM, Luftwaffe Fl.20269 Drehzahlanzeiger B-24 The piece is marked with

The piece is marked with the serial number of Spitfire PV202Y1AC161

0-400 Knots

Small levers on either on either side of the round 'vibration mounts' tighten and release the security of the grip of the mount to the compass body

I-82-A Navigators Indicator

such as bombers B-17 Flying Fortress

Tachometer, Electrical, 400-3600 RPM, Luftwaffe Fl.20269 Drehzahlanzeiger B-24 The piece is marked withHere is a nice specimen of a WWII era electrical Tachometer, or Drehzahlanzeiger, as used in the German Luftwaffe aircraft Me109 G K, and Fw190D thru Ta152. This tachometer received electrical signal from a generator located proximal to the engine drive to indicate engine speed, from 400 3600 RPM. Likely made by Horn. The Fl number is illegible, but the instrument is identical to that listed at the reference site GermanLuftwaffe. com. It is in