Historical information

Standard crew issue for pilots and flight engineers.

Significance

The equipment supplied air crew with a computer to calculate individual aircraft's weight and balance.

Physical description

2 Circular plastic manual computing discs with black print on a white background with areas for calculating Centre of gravity, Armament, Bomb loadings,Fuel, oil,Crew, Miscel., Oxygen and Camera. Clear plastic protractor with string attached. Enclosed in a leather envelope.

Inscriptions & markings

GRAVISCOPE FOR LIBERATOR. MODEL B24J, L AND M. MANUFACTURED BY MELB. >W&G< AUST. R.A.A.F IDENT NO G6B/2396