ADVOKS GLOBAL · KENYA
The Civil Aviation (Environmental Protection Aircraft Noise) Regulations, 2025
75. Take-off reference procedure
Edition: 2026-03-03 · In force
75. Take-off reference procedure
The take-off reference flight procedure shall be established as follows—(a)a constant take-off configuration, including nacelle angle, selected by the applicant shall be maintained throughout the take-off reference procedure;(b)the tilt-rotor shall be stabilized at the maximum take-off power corresponding to minimum installed engine(s) specification power available for the reference ambient conditions or gearbox torque limit, whichever is lower, and along a path starting from a point located 500 m (1 640 ft) prior to the flight path reference point, at 20 m (65 ft) above the ground;(c)the nacelle angle and the corresponding best rate of climb speed, or the lowest approved speed for the climb after take-off, whichever is the greater, shall be maintained throughout the take-off reference procedure;(d)the steady climb shall be made with the rotor speed stabilized at the maximum normal operating rpm certificated for take-off;(e)the mass of the tilt-rotor shall be the maximum take-off mass at which noise certification is requested; and(f)the reference take-off path is defined as a straight line segment inclined from the starting point (500 m (1 640 ft) prior to the centre noise measurement point and 20 m (65 ft) above ground level) at an angle defined by best rate of climb and the best rate of climb speed corresponding to the selected nacelle angle and for minimum specification engine performance.