Canadian Aviation Regulations

704.47 (1) Subject to subsection (3), no air operator shall authorize a flight — and no person shall conduct a take-off — in a turbo-jet-powered aeroplane, a large aeroplane that is propeller-driven or a propeller-driven aeroplane that has a passenger seating configuration of 10 or more, if the weight of the aeroplane exceeds the weight specified in the aircraft flight manual as allowing a net take-off flight path that clears all obstacles by at least 10.7 m (35 feet) vertically or at least 60 m (200 feet) horizontally within the aerodrome boundaries, and by at least 91.5 m (300 feet) horizontally outside those boundaries.

(2) In the determination of the maximum weight, minimum distances and flight path referred to in subsection (1),

• (a) corrections shall be made for

  • (i) the runway to be used,

  • (ii) the runway slope in the direction of take-off,

  • (iii) the pressure-altitude at the aerodrome,

  • (iv) the ambient temperature at the aerodrome, and

  • (v) the wind component at the time of take-off, that is not more than 50% of the reported headwind or not less than 150% of the reported tailwind;

• (b) calculations shall be based on the pilot

  • (i) not banking the aeroplane before reaching an altitude of 15 m (50 feet),

  • (ii) subject to paragraph (c), using no more than 15 degrees of bank at altitudes between 15 m (50 feet) and 122 m (400 feet), and

  • (iii) using no more than 25 degrees of bank at altitudes above 122 m (400 feet), aeroplane speed and configuration permitting; and

• (c) a bank angle greater than the angle referred to in subparagraph (b)(ii) may be used if it is authorized in an air operator certificate.

(3) An air operator may authorize a flight — and a pilot-in-command may conduct a take-off — in an aeroplane referred to in subsection (1) that does not meet the requirements of that subsection if

• (a) in the case of a large aeroplane that is propeller-driven and for which visual obstacle clearance procedures are used during take-off and climb,

  • (i) the aeroplane has fewer than 10 passengers on board,

  • (ii) the air operator has conducted an obstacle assessment to identify fixed and transient obstacles along the take-off flight path,

  • (iii) the air operator has set out, in the company operations manual, a one-engine-inoperative departure plan that allows the pilot-in-command to rely on visual guidance to manoeuvre the aeroplane in a manner that will allow the net take-off flight path to be clear of all obstacles by at least 10.7 m (35 feet) vertically or at least 60 m (200 feet) horizontally within the aerodrome boundaries, and by at least 91.5 m (300 feet) horizontally outside those boundaries, until the aeroplane has reached the end of the take-off flight path,

  • (iv) the one-engine-inoperative departure plan includes

    • (A) an obstacle assessment to identify fixed and transient obstacles along the take-off flight path,

    • (B) the aeroplane’s approved performance information specified in the aircraft flight manual, and

    • (C) the visual reference points to be used along the take-off flight path, and

  • (v) existing meteorological conditions allow the clearance, through visual guidance, of all obstacles and terrain by the margins specified in subparagraph (iii); or

• (b) in the case of an aeroplane operated in a non-scheduled air service,

  • (i) the take-off weight of the aeroplane is not limited by any take-off weight limitations specified in the aircraft flight manual,

  • (ii) the aerodrome elevation is at or below 1 220 m (4,000 feet) ASL, and

  • (iii) the ceiling and visibility are at or above the landing and approach minima for the departure aerodrome.