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Canadian Aviation Regulations

Version of section 704.49 from 2006-03-22 to 2019-06-27:

  •  (1) Subject to subsection (3), no person shall dispatch or conduct a take-off in a turbo-jet-powered aeroplane or in a large aeroplane unless

    • (a) the weight of the aeroplane on landing at the destination aerodrome will allow a full-stop landing

      • (i) in the case of a turbo-jet-powered aeroplane, within 60 per cent of the landing distance available (LDA), or

      • (ii) in the case of a propeller-driven aeroplane, within 70 per cent of the landing distance available (LDA); and

    • (b) the weight of the aeroplane on landing at the alternate aerodrome will allow a full-stop landing

      • (i) in the case of a turbo-jet-powered aeroplane, within 60 per cent of the landing distance available (LDA), or

      • (ii) in the case of a propeller-driven aeroplane, within 70 per cent of the landing distance available (LDA).

  • (2) In determining whether an aeroplane can be dispatched or a take-off can be conducted in accordance with subsection (1), the following shall be taken into account:

    • (a) the pressure-altitude at the destination aerodrome and at the alternate aerodrome;

    • (b) not more than 50 per cent of the reported headwind component or not less than 150 per cent of the reported tailwind component; and

    • (c) that the aeroplane must be landed on a suitable runway, considering the wind speed and direction, the ground handling characteristics of the aeroplane, and other conditions such as landing aids and terrain.

  • (3) Where conditions at the destination aerodrome at the time of take-off do not permit compliance with paragraph (2)(c), an aeroplane may be dispatched and a take-off conducted if the alternate aerodrome designated in the operational flight plan permits, at the time of take-off, compliance with paragraph (1)(b) and subsection (2).


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