To view this page ensure that Adobe Flash Player version 9.0.124 or greater is installed. -power absorption – tail rotor and ancillary equipment -rotor profile power variation with forward speed -induced drag -parasite drag -total power required -power available k) Further aerodynamics of forward flight -transition from and to the hover -symmetry and asymmetry of rotor thrust -main rotor flapback -total rotor flapback and methods of removal -factors affecting maximum forward speed -design limits of cyclic stick -airflow reversal -retreating blade stall -symptoms and recovery actions -compressibility -flow separation -shock stall -‘G’ stall l) Factors affecting cyclic stick limits -all up mass (AUM) -density altitude -cg position m) The flare – power flight -thrust reversal -effect on aircraft attitude -increase on rotor thrust -decrease in rotor drag -increase in rotor RPM -effect of deceleration n) Setting with power (vortex ring) -tip vortices -comparison induced flow and external flow -development -change in relative airflow along blade span -root stall and turbulence o) Blade sailing -rotor RPM and blade rigidity -effect of adverse wind -minimizing the danger p) Vertical -rate of descent airflow -effective airflow -relative airflow -inflow and inflow angle -autorotative force -rotor drag -effect of mass and altitude -control of rotor RPM with lever -rotor RPM stability q) Autorotation – forward flight -Factors affecting inflow angle -effect of forward speed on rate of descent -asymmetry of autorotative disc area in forward flight -turning -the flare -rotor RPM increase from movement of autorotative selection -increase in rotor thrust 直升机网 www.helicopter.cn 直升机翻译 www.aviation.cn 本文链接地址:直升机飞行员执照训练大纲 TRAINING SYLLABUS FOR ISSUE OF HELICOPTER PILOT LICENCES(98) |