Demonstration Stalls
This lesson should establish the student's familiarity with situations leading to (and the execution of) the more complex and dangerous stalls, while explaining the danger of near-spin conditions.
Elements
- "advanced" stalls
- crossed-control stalls
- elevator trim stalls
- secondary stalls
- accelerated stalls
- recovery techniques
- avoidance
Equipment
- model aircraft
- whiteboard and markers
- Airplane Flying Handbook
- standardization manual (Arrow)
Instructor actions
Demonstrate, using the whiteboard and model aircraft, the setups, execution, and recoveries for demonstration stalls. As a guided discussion, teach and evaluate the student’s application of the maneuver to real-world situations.
Student actions
Read assignment prior to briefing, and participate in the guided discussion with responses and questions.
Completion Standards
The lesson will be complete when the student shows a working knowledge of demonstration stalls and can explain the maneuvers with minimal instructor guidance.
Plan of Action
###Setups
- 1,500/2,000, 15”
- flaps, gear as specified (takeoff or climb)
Crossed-control stalls
- configure: landing, zero flaps, idle
- reduce airspeed to glide (79 knots, Arrow)
- banked, descending turn as if to overshoot
- excess rudder into the turn to cheat
- opposite aileron to maintain bank
- backpressure to maintain attitude
- recognition and recovery - simultaneous
Elevator-trim stalls
- reduce airspeed to 75 knots
- trim full-aft
- full power and a high pitch attitude, no more than 30°
- maintain until stall
- coordination
- retrim following recovery
Secondary stalls
- power-off configuration
- induce a full stall
- improper half-recovery
- induce second imminent stall
Accelerated
- zero flaps, idle
- reduce airspeed to glide (79 knots)
- establish a steep turn (45° or more)
- maintain altitude with backpressure
Recovery
- recovery (power, flaps to 25°, gear, flaps to 0°)
- Vx or Vy prior to flap retraction
- pitch changes with flaps
- arrest descent, avoiding secondary
- reaction speeds