|Object Name:||Canberra Indicating Accelerometer|
|Year of Manufacture:||1954|
|Location:||Main Object Store|
Accelerometer, Aircraft, Indicating.
Type No. 3D91
Ref. No. 6A/3451.
Serial No. E.B.L. 125/54
Marconi Collection Ref: 2029
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.
The case has additional marks on it:
As a label: "Incorporating Mod. Inst A/278"
Written in ink: "A6A4695406"
Written in ink: "EBL.R.Apr.93. ( This is a Calibration mark where EBL R stands for Elliott Brothers London Rochester a name no longer used by 1993 but still employed on the Inspectors Stamps)
Stamped in ink: "GAV(R) 132 PSD" ( This is a later Calibration mark where GAV (R) is GEC Avionics Rochester, and PSD is Powerplant Systems Division.
mped in ink: "GAV(R) 132 PSD"