RMIT Flight Training Steep Turns RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 1 Brief 11 STEEP TURNS Aim: To learn the principles and considerations involved in conducting a steep turn. Application: - An evasive manoeuvre. - Coordination exercise. Definitions: A steep turn is when the angle of bank is equal to or in excess of 45o. Revision: Forces in a MLT Load Factor = L / W Principles: Forces in a Steep Turn S & L STEEP TURN L = 2W LF = 2g L W Straight and level L = W L W W L L W L W W L RMIT Flight Training Steep Turns RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 2 Brief 11 Considerations: Power - The AoA causes an DI which must be balanced by T, to maintain speed. Load Factor - Since L = 2W then LF = 2g and you feel twice your normal weight. - Remember graph from stalling lesson: @ 60 AoB ie: 2g VS by 40% to 62KIAS Spiral Dive - Due to disorientation or loss of altitude during high AoB manoeuvres. Symptoms: 1. High and increasing IAS 2. Low nose attitude, high RoD 3. High AoB 4. High noise level Increased Stall Speed 1G 2G 3G 4G 2.0 1.8 1.6 1.4 1.2 1.0 “g” load RMIT Flight Training Steep Turns RMIT Instructor Rating Mass Briefs Issue 1 /2004 Page 3 Brief 11 Air Exercise: Pre-Entry - Trim for S&L - Select a reference point - Lookout - Check minimum entry speed (>80kt) Entry - B Bank passing 30o AoB increase power - B Balance - B Back Pressure anticipate increased amount due Lv During - A Attitude - L Lookout - A Attitude - P Performance Exit - B Bank passing 30o AoB reduce power - B Balance - B Back Pressure anticipate reduction due more back pressure Spiral Dive Recovery 1. Reduce power to idle 2. Ease wings level 3. Ease out of dive, to climb attitude 4. At 100KIAS, increase power 5. Climb away. DO NOT ATTEMPT TO EASE OUT OF A DIVE UNTIL WINGS LEVEL! Airmanship: - Lookout - Smooth but positive aircraft handling - Correct Handover/Takeover procedure - Awareness of spiral dive symptoms and prompt recovery if necessary.作者: xy8701 时间: 2015-4-7 23:03:16