RMIT飞行训练课件－Steep Turns 大坡度转弯

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Steep Turns

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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.

xy8701

谢谢楼主，我正准备去RMIT读书