RMIT Flight Training Flapless Circuits RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 1 Brief 15 FLAPLESS CIRCUITS Aim: To approach and land safely without the use of flaps. Application: - Carried out in gusty conditions - Used in the event of a flap system failure Revision: Effect of Power / Flap on Descent Profile Principles / Considerations: Compared to a normal approach to land, a flapless approach will have: Flatter flight path, due to less drag. Higher approach speeds, to maintain a safe margin over stall. Higher nose attitude to maintain sufficient angle of attack Reduced forward visibility. Minimal flare but a longer float (due more airspeed and less drag). A longer landing run. With Power, Without Flap Without Power or Flap Without Power, With Flap L D W T L D W L D W RMIT Flight Training Flapless Circuits RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 2 Brief 15 Air Exercise: Circuit is conducted as a normal circuit except allowances for speed and the base turn are altered. This is shown in the diagram below. Airmanship: - Lookout. - Thorough checks. - Avoid high-nose attitude on touchdown because of possible tail strike. - If in doubt - go around. - Correct handover/takeover procedure. Glide Approach Normal Approach Flapless Approach 1200 rpm 75 kt 70 kt Expect more float Avoid excess hold-off作者: metro163 时间: 2010-8-25 09:54:21