A Royal Air Force Navigational Computer (Computor) Mk. Iii H And Manual Archive Peter Alexandrovich Rumyantsev (1725 -

Peter Alexandrovich Rumyantsev (1725 - 1796)

General Matthew B

Panama Canal Zone

maker marked "N

A Royal Air Force Navigational Computer (Computor) Mk. Iii H And Manual Archive Peter Alexandrovich Rumyantsev (1725 -WWII Royal Air Force Navigational Computer (Computor) Mk. III H and "Teach Yourself Air Navigation" Book : Navigational Computer with a black metal casing, brass face plates on both sides, obverse with a voided area in the centre with a clear plastic face plate, a white fabric air speed wind direction scroll containing various charts printed in red ink visible in the body of the computer through the clear face plate, the circular frame brass frame