English Electric Canberra

The navigational computer was a circular slide rule used for calculating height and air speed corrections when flying an aircraft. The front cover lifts to reveal a further calculator used to solve vector triangles and plot course alterations. The device was intended to be strapped to a pilot's leg. The instrument was made by White and Gillespie (Melbourne) Pty Ltd c 1940 for the RAAF and used during WW2.Black metal box with silver metal flap top cover affixed with rotating circular rule . Two adjustable belts are affixed to the base of black box. A small spiral bound note book is contained beneath the flap top. RAAF Computer Navigational system MK. III. D. Serial No WG 2833navigation, raaf, computer, aircraft, ww2, 1940

Cairn commemorating the crash of the aircraft Kyeema on the western slope of Mt Dandenong on October 25th, 1938. Photograph taken in 1988. Text on plaque reads: FIFTY METRES BELOW THIS POINT ON 25 OCT. 1938, AUSTRALIAN NATIONAL AIRWAYS' DC-2 'KYEEMA' PLUNGED TO DESTRUCTION WHILE THE MOUNTAIN WAS ENVELOPED IN CLOUD. ALL 18 PERSONS ON BOARD PERISHED. FROM THE RECOMMENDATIONS OF THE SUBSEQUENT ENQUIRY HAVE EVOLVED THE AIR TRAFFIC CONTROL SYSTEMS IN USE THROUGHOUT AUSTRALIA TODAY. THIS PLAQUE, PLACED BY THE MOUNT DANDENONG HISTORICAL SOCIETY, WITH ASSISTANCE FROM G. GRAMP & SONS, THOS. HARDY & SONS, S. SMITH & SON, AUSTRALIAN FEDERATION OF AIR PILOTS AND FORESTS COMMISSION OF VICTORIA, WAS UNVEILED ON 25TH OCT. 1978 TO MARK THE 40TH ANNIVERSARY OF THE DISASTER.kyeema, cairn, mt dandenong, air crash