asked the Minister of Aviation what are the maximum hours at one time during which an airline pilot can be on duty under his regulations.

The Air Navigation Order prescribes maxima only for flying duty periods, although, in order to prevent accumulation of fatigue, the operator is obliged to establish reasonable limits to duty periods during which a pilot is not called upon to fly. The maximum permitted flying duty in the case of a single pilot crew is 11 hours, which must be followed by at least 11 hours rest; in the case of a two-pilot crew, 16 hours, followed by at least 16 hours rest; and in the case of a three-pilot crew, 24 hours, followed by at least 32 hours rest. There is also an overall limit of 115 hours flying duty in any period of 28 consecutive days.