CS-VLA 145 Longitudinal Control

• ED Decision 2003/18/RM found in: CS-VLA Amdt 1 - Very Light Aeroplanes (Mar 2009)

CS-VLA 145 Longitudinal Control ED Decision 2003/18/RM (a) It must be possible at any speed below 1.3 VS1, to pitch the nose downwards so that a speed equal to 1-3 VS1 can be reached promptly. (1) This must be shown with the aeroplane in all possible configurations, with power on at maximum continuous power and power idle, and with the aeroplane trimmed at 1.3 VS1. (b) It must be possible throughout the appropriate flight envelope to change the configuration (landing gear, wing flaps etc ...) without exceeding the pilot forces defined in [CS-VLA 143(c)](#_DxCrossRefBm584936634). (c) It must be possible to raise the nose at VDF at all permitted c.g. positions and engine powers. (d) It must be possible to maintain steady straight flight and transition into climbs, descents, or turning flight, without exceeding the forces defined in [CS-VLA 143(c)](#_DxCrossRefBm584936634). (e) It must be possible to maintain approximately level flight when flap retraction from any position is made during steady horizontal flight at 1.1 VS1 with simultaneous application of not more than maximum continuous power. (f) For any trim setting required under [CS-VLA 161(b)(1)](#_DxCrossRefBm584936637) it must be possible to take-off, climb, descend and land the aeroplane in required configurations with no adverse effect and with acceptable control forces.