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|image=RAF Airspeed AS.10 Oxford II Brown.jpg |manufacturer=[[Airspeed Ltd.]]

...ry, investigation and categorization of [[Aviation accidents and incidents|flight failures]], and the prevention of such failures through regulation, educati ...1928, and 51 in 1929 (killing 61 people), which remains the worst year on record at an accident rate of about 1 for every {{convert|1000000|mi|km}} flown. B