Computer Navigational MkIII D, White & Gillespie (Melb) Pty Ltd, c. 1940

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

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