标题: RMIT飞行训练课件－Steep Turns Mass Brief 大坡度转弯 [打印本页] 作者: 航空 时间: 2010-10-27 00:43:48 标题: RMIT飞行训练课件－Steep Turns Mass Brief 大坡度转弯
作者: 航空 时间: 2010-10-27 00:44:03
Steep Turns Mass Brief Aim • To learn the principles and considerations involved in conducting a steep (level) turn that is coordinated and in balance. Application • A coordination exercise • An evasive manoeuvre Overview • Revision • Definitions • Principles – Steep turn • Considerations – Power – Load factor – Spiral dive • Air Exercise • Airmanship Revision • Forces in a Medium Level Turn 30° Definitions Steep Turn • A turn where the angle of bank is equal to or in excess of 45° 45° Principles • Forces in a Steep Turn Weight Load Factor Lift 60° Considerations • Load Factor – “G Force” – “G Loading” Weight Load Factor Lift cosAngle of Bank Load Factor 1 V V LF New StallSpeed S Considerations Load Factor • 60 degree angle of bank CosAoB LF 1 Cos60 LF 1 2 0.5 LF 1 V V LF New StallSpeed S V 44 2 New Stall Speed V 44 1.41 New StallSpeed V 62.23 KIAS New Stall Speed Considerations Power Setting • Angle of Attack increased • Induced drag increased • Drag balanced by adding more thrust to maintain speed Considerations Aircraft Limitations • Maximum speed limitations • Manoeuvre speed • Maximum Loading Vne 163 KIAS Vno 129 KIAS Va 99 KIAS +3.8g Considerations • Overbanking tendency L R • Coordinating the turn BALANCED SLIPPING SKIDDING Considerations Spiral Dive • Due to disorientation or loss of altitude during high Angle of Bank manoeuvres. Symptoms: 1. High and increasing IAS 2. Low and lowering nose attitude, high ROD 3. High and increasing Angle of Bank 4. High and increasing noise level Air Exercise • Pre-Entry – Trim for Straight and Level – Select a reference point – Lookout – Check minimum entry speed (>95kt) • Entry – B – B – B ank passing 30° AoB increase power alance ack Pressure large increase in backpressure Air Exercise • During – A – L – A – P ttitude ookout ttitude erformance • Exit – B – B – B ank passing 30° AoB reduce power alance ack Pressure release back pressure Air Exercise • Attitudes Air Exercise Spiral dive recovery 1. Reduce power to idle 2. Ease wings to level 3. Ease out of dive, to the climb attitude 4. At 90 KIAS, increase power BROC 5. Climb away Do not attempt to ease out of a dive UNTIL the wings are level Airmanship • Lookout • Smooth but positive aircraft handling • Correct handover/takeover procedure • Operate within maximum aircraft limitations • Awareness of spiral dive symptoms and prompt recovery if necessary Review作者: EsiC 时间: 2010-10-30 20:46:49 标题: kankan