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Out-of-control flight (OCF) is any flight condition in which the aircraft _____
does no respond immediately and properly to flight control inputs.
OCF can be induced by:
- Uncoordinated flight
- Improper control inputs
- Overly aggressive control inputs
- Structural damage
What are the three stages of OCF?
- Poststall gyrations
- Incipient spins
- Steady-state spins
Failure to promptly apply proper OCF recovery procedures during the first two OCF stage will eventually result in a _____.
What are indications of poststall gyrations?
- Loss of control effectiveness
- Stalled or near-stalled AOA with stick shaker activated
- Transient or erratic airspeed indications
- Random rate-of-turn pointer indications
Describe the poststall gyration phase.
- Uncommanded and often rapid aircraft motion about any axis
- Could be violently spinning, tumbling or cartwheeling
Describe the incipient phase.
- Motion is less random and more spin-like.
- Phase last approximately two turns before progressing to a steady-state spin
Incipient spin characteristics include:
- Oscillatory, rotating motion
- Stalled AOA with stick shaker
- Airspeed accelerating or decelerating toward the steady-state value
- Rate-of-turn pointer fully deflected in the direction of the rotation
OCF recovery steps:
- Check AOA, rate-of-turn pointer and airspeed
- PCL - IDLE
- Controls - Neutral
- Altitude - check
- Recover from unusual attitude
If you have not recovered from OCF by _____, ejection is recommended.
How do you know that neutral controls are becoming effective in eliminating an OCF condition?
Yaw rate decreases and the nose pitches down
How are erect spins practiced?
At 80 KIAS, full aft stick, idle power, and full rudder applied in the direction of the spin.
Erect spin characteristics:
- Sustained yaw rate
- AOA at or above 18
- Rate-of-turn pointer fully deflected in the spin direction
- Approximately 60° nose-low
- 2-3 seconds per turn
- VSI pegged at 6000 fpm
- Aispeed stabilized at 120-125 KIAS
Allow how many seconds of 1G flight prior to executing a spin maneuver?
Practice spin configuration:
- Start at 120-160 KIAS
- Raise the nose 15-40° nose-high
- PCL - IDLE; maintain 1G
- At 80 KIAS: aft stick to maintain pitch attitude, full rudder in direction of desired spin
- Nose 15-40° nose-high
Inverted spin characteristics:
- Pitch approximately 30° nose low
- AOA indicating 0
- Rate-of-turn pointer fully deflected in spin direction
- Airspeed 40 KIAS
- Accelerometer -1.5G
If OCF recovery procedures are not effective on an inverted spin, what are the inverted spin procedures?
- Gear,flaps and speed brake - UP
- PCL - IDLE
- Rudder - full opposite to rate-of-turn pointer deflection
- Control stick - aft of neutral
- Smoothly recover to level flight after rotation stops
What is a spiral?
- Characterized by a nose-low attitude with rapidly increasing airspeed
- AOA less than 18
Why is a stability demonstration performed?
To show that even from high pitch attitudes and slow airspeeds, an aircraft will not spin as long as it is not allowed to stall
Stability demonstration set up:
- Wings level
- 160 KIAS
- 60% torque
- Raise nose to 45° pitch up
- At 80 KIAS
- PCL - IDLE
- Neutralize the controls
- Allow nose to lower until you feel positive pressures
- Recover to level flight
What is the approximate practice spin entry airspeed?
Which of the following is an indication of an erect spin?
Airspeed stabilized at 120-135 KIAS