Indicating Accelerometer

Accelerometer, Aircraft, Indicating.
Type No. 3D91
Ref. No. 6A/3451.
Serial No. E.B.L. 125/54
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[additional marks]
Incorporating Mod. Inst A/278
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[inked marks]
A6A4695406
EBL.R.Apr.93
GAV(R) 132 PSD

A self-contained indicator with in-built acceleration sensor that operate its dial pointers directly. The dial shows aircraft acceleration in 'g' units in the range -4g to +10g. It also has pointers that record max and min acceleration which can be reset by pushing the button at the bottom-left of the bezel.

The back of the instrument.has a ¼-turn locking-knob that can be used to protect the mechanism during transport.

In the various marks:
"EBL R" is Elliott Brothers London Rochester, a name no longer used in 1993 but still employed on Inspectors Stamps.
"GAV (R)" is GEC Avionics Rochester.
"PSD" is Powerplant Systems Division.
This item was in the original Elliott Collection Ref: 2029