Engine speed indicator Mk 1A
- Made:
- 1939 in unknown place
Engine speed indicator Mk 1A. Used for test flying.
This instrument is an early pattern operating on the centrifugal governor principle.
Details
- Category:
- Farnborough
- Object Number:
- 1993-1923
- Materials:
- aluminium alloy & glass
- type:
- radioactive material
