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This Subpart prescribes exceptions to the general operating and flight rules in Part 91 for a pilot performing, or being trained to perform, an agricultural aircraft operation in an aeroplane issued with a restricted category airworthiness certificate under Part 21 Subpart H for the purpose of an agricultural aircraft operation.
(a) Notwithstanding Part 91 and subject to paragraph (b), a pilot performing, or being trained to perform, an agricultural aircraft operation in an aeroplane must not take off at a weight greater than the MCTOW prescribed in the aeroplane’s flight manual unless—
(1) the pilot complies with the procedures listed in Appendix B; and
(2) the aeroplane is equipped with a jettison system that, in accordance with D.5, is capable of discharging not less than 80 percent of the aeroplane’s maximum hopper load within five seconds of the pilot initiating the jettison action.
(b) Where there is a third party risk as defined in Appendix A, the pilot must determine the maximum take-off weight in accordance with rules 137.107 and 137.109.
A pilot performing, or being trained to perform, an agricultural aircraft operation in an aeroplane where there is no third party risk as defined in Appendix A is not required to comply with the following:
(1) the take-off distance specified in the aeroplane flight manual;
(2) the take-off flight path gradient specified in the aeroplane flight manual.
(a) Subject to paragraph (b), a pilot performing, or being trained to perform, an agricultural aircraft operation in an aeroplane, where there is a third party risk as defined in Appendix A, must ensure that the take-off distance available is greater than the take-off distance specified in the aeroplane flight manual multiplied by a factor of 1.2.
(b) When calculating the take-off distance, the pilot must take the following factors into account:
(1) the weight of the aeroplane at the commencement of the take-off run;
(2) the pressure altitude of the aerodrome;
(3) the ambient temperature at the aerodrome;
(4) the runway surface type and condition;
(5) the runway slope in the direction of take-off;
(6) not more than 50% of the headwind component or not less than 150% of the tailwind component.
(a) Subject to paragraph (b), a pilot performing, or being trained to perform, an agricultural aircraft operation in an aeroplane where there is a third party risk as defined in Appendix A must ensure that the take-off flight path clears all obstacles by—
(1) a vertical distance of at least 50 feet plus 0.025D; or
(2) a lateral distance of at least 30 metres plus 0.1D—
where D is the horizontal distance travelled by the aircraft from the end of the take-off distance available.
(b) When calculating compliance with paragraph (a), the pilot must take the following factors into account:
(1) the take-off flight path must begin at a height of 50 feet above the take-off surface at the end of the take-off distance required by rule 137.107 and end at a height of 500 feet above the take-off surface;
(2) the aeroplane must not be banked at an angle exceeding 20 degrees;
(3) obstacles which have a lateral distance greater than 150 metres from the planned flight path may be disregarded.
