Aviation in Canada, 1917-1918 Being a Brief Account of the Work of the Royal Air Force Canada, the Aviation Department of the Imperial Munitions Board, and the Canadian Aeroplanes Limited

ii. Error of judgment--

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(a) Not due to poor instruction. (b) Probably due to poor instruction.

iii. Loss of head.

iv. Brain fatigue.

v. Fear.

vi. Physical illness.

vii. Unavoidable.