Break Turn Stall

CHAPTER TEN

BASIC FIGHTER MANEUVERS (BFM)

the direction opposite to the aileron input, due to adverse yaw, will be noticed. With an increase

in the aileron deflection, the aircraft will depart, with mild roll and yaw, followed by the nose

falling through. Recovery will occur quickly with neutral controls.

Break Turn Stall

The purpose of the break turn stall is to demonstrate the characteristics of a stall and correct

recovery techniques during a break turn. The stall will be conducted in a clean configuration at

250 KIAS. Upon completion of a clearing turn, the IP will roll into a level, 60 angle-of-bank

turn, while simultaneously reducing power to idle and extending the speedbrakes. The IP will

maintain altitude by varying AOB while maintaining approximately 3-4 Gs in the turn until the

aircraft stalls. Recovery will be initiated by simultaneously relaxing the backpressure, rolling

wings-level with the nose in the level flight attitude for the recovery airspeed, adding maximum

power, and retracting the speedbrakes. Crosscheck AOA and airspeed in order to prevent reentry

into the stall.

Steep Turn Stall

The purpose of this maneuver is to demonstrate the characteristics of a steep turn stall and its

proper recovery techniques. Steep turns are obviously extremely common during BFM

engagements. The steep turn stall will be conducted in a clean configuration at cruise airspeed

and power.

Upon completion of the clearing turn, the IP will roll into 80 angle-of-bank and attempt to

maintain altitude by increasing backpressure until the aircraft stalls. Rudder shaker should be

felt at 17-1/2 units AOA. Airframe buffet will occur shortly before the stall. The IP will initiate

recovery by simultaneously relaxing back pressure, leveling the wings, and adding maximum

power.

Zero Airspeed Departure

The purpose of this maneuver is to demonstrate the characteristics of an extreme nose-high low

airspeed departure. The maneuver will be conducted in a clean configuration. The IP will

initiate the maneuver by accelerating the aircraft to approximately 280 KIAS and commence a

4 G pull to 90 nose-up, by referencing the tip tanks perpendicular to the horizon. As the

airspeed decreases below 180 KIAS, the IP will reduce the power to idle and maintain a vertical

attitude. The airspeed will decrease to zero and the nose will fall forward or backward,

depending on the aircraft's exact attitude at the top of the maneuver. The rudder and elevator

may try to go full throw if the aircraft backs down on its tail.

As the airspeed decelerates below 120 KIAS during the initial climb, the student will ask the

pilot, "BELOW 120. DO YOU HAVE CONTROL?" The IP will answer "NO". The student

will direct recovery in accordance with the NATOPS out-of-control flight (OCF) recovery

procedure.

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BASIC FIGHTER MANEUVERS (BFM)