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What are the indications of an incipient spin?
- Oscillatory, rotating motion
- Airspeed accelerating or decelerating toward the steady-state value
- Turn needle fully deflected in the direction of rotation
- Stalled AOA with stick shaker activated
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At what airspeed will you usually enter an erect spin?
80 KIAS
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Aircraft motion in ______ becomes less random and more spin like
An incipient spin
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What conditions can induce OCF?
- Overly aggressive control inputs
- Structural damage
- Uncoordinated flightImproper control inputs
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The aircraft will progress from one OCF phase to the next as long as _____ are applied.
Pro spin controls
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What are the indications of a stabilized erect spin?
- AOA at or above 18 units, with stick shaker activated
- Approximately 60° nose low
- VSI pegged at 6000 fpm descent (400 to 500 feet per turn)
- Airspeed stabilized at 120 -135 KIAS
- Sustained yaw rate
- Turn needle fully deflected in the spin direction2 to 3 seconds per turn
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An erect spin requires _____ G stall, and inverted spin requires ____ G stall
Positive; negative
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What are the phases or stages of OCF?
- Poststall gyration
- Incipient spins
- Steady state spins
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What are the correct steps to perform practice OCF entry?
- Ensure proper altitude and cloud clearance
- Clear the area
- Complete required checklist
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Attempts to enter inverted spins with idle power have typically resulted in _____
Inverted spiral
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To enter a practice erect spin, initiate entry at _____ KIAS, ____ nose high, PCL ____, and maintain approx ___.
120 (min) to 160; 15-40*; IDLE; 1G
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For both practice and inadvertent OCF entry, before performing a recovery procedure you should check your?
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_____ cannot be used to determine the difference between a spiral and spin.
Turn needle deflection
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What is the approx spin entry airspeed?
80 knots
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What are the indications of a poststall gyration?
- Loss of control effectivness
- Stalled AOA
- Transient or erratic airspeeds
- Random turn needle deflections
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To be in a steady state spin the aircraft must be in a _____ with a sustained _____.
Full stall; constant yaw rate
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Begin the spin recovery before the end of the ______ spin phase. Waiting any longer could result in an excessive loss of altitude.
Incipient
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What are the characteristics of an inverted spin?
- AOA indicating zero units
- Turn needle fully deflected in the spin direction
- Airspeed indicator reading 40 KIAS
- Pitch approximately 30° nose low
- Accelerometer indicating negative 1.5 Gs
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To enter the stability procedure demo, accelerate to ___ KIAS, adjust power to ___ torque, and raise nose to a ___ pitch attitude.
160; 60%; 45*
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When do you begin the OCF recovery?
When directed by the IP
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Primary factor that results in an inverted spin is ______.
PCL at MAX
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What is the inverted spin recovery procedure?
- Gear, flaps and speed brake retracted
- PCL - IDLE
- Rudder – opposite to turn
- Control stick – aft of neutral, ailerons neutral
- Smoothly recover to level flight after rotation stops
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A spiral is characterized by a ____ attitude with a ____ airspeed, and the AOA gauge indicates ____.
Nose low; rapidly increasing, less than 18 units
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How do you know that neutral controls are becoming effective in eliminating an OCF condition?
Yaw rate decreases and nose pitches down
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When do you begin the unusual attitude recovery after performing the OCF recovery procedure?
When aircraft gyrations stop and the aircraft is under control
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