Alternative Name(s): 'Black Box' Flight Recorder
Ground-based unit for the prototype airborne ARL Flight Memory recorder unit invented by Dr David Warren. This unit is a playback station for separating cockpit speech and instrument reading recordings. The unit was first flight tested on 23 March 1962 on Fokker Friendship VH-CAV flying from Essendon airport.

This invention subsequently became colloquially known as the 'black box flight recorder'.

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