Historical information

RAAF Manual navigation aircraft calculator(early computer)

Significance

General issue to allied pilots and navigators for airspeed,altitude,air temperature and drift calculations.

Physical description

Black metal box with SS flap-top cover, moulding and straps for knee attachment.

Inscriptions & markings

Engraving No. 19, Ident.No. G6B/145.
I.C.A.N. Serial No. WG/1716*. Computer Navigational Mk.IIID