AI.X.E.K2
KnowledgeAerodynamics associated with accelerated stalls in various airplane configurations, including the relationship between angle of attack, airspeed, load factor, power setting, airplane weight and center of gravity, airplane attitude, and yaw effects.
From the FAA library
- Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Accelerated Stalls
Accelerated Stalls While pilots may understand the cause of an accelerated stall, it takes training to experience how these stalls develop and occur. The objectives of demonstrating an accelerated stall are to determine the stall characteristics of the airplane, experience ... stalls at speeds greater than the +1G stall speed, and develop the ability to instinctively recover at the onset of such stalls. This is a maneuver only commercial pilot and flight instructor applicants may be required to perform…
- Chapter 5: Aerodynamics of Flight › Load Factors › Load Factors and Stalling Speeds
Load Factors and Stalling Speeds Any aircraft, within the limits of its structure, may be stalled at any airspeed. When a sufficiently high AOA is imposed, the smooth flow of air over an airfoil breaks up and separates, producing ... abrupt change of flight characteristics and a sudden loss of lift, which results in a stall. A study of this effect has revealed that an aircraft’s stalling speed increases in proportion to the square root of the load factor…
- CHAPTER 1. GROUND TRAINING: STALL AND SPIN AWARENESS › 100. STALL/SPIN EFFECTS AND DEFINITIONS › g. Load Factor
Load Factor. Load factor is the ratio of the lifting force produced by the wings to the actual weight of the airplane and its contents. Load factors are usually expressed in terms of “G.” The aircraft’s stall speed increases ... proportion to the square root of the load factor. For example, an airplane that has a normal unaccelerated stall speed of 45 knots can be stalled at 90 knots when subjected to a load factor…
- CHAPTER 2. FLIGHT TRAINING: STALLS › 200. STALL TRAINING › a. Stall Avoidance Practice at Slow Airspeeds
This loss of power will result in a VMC lower than the stall speed at higher altitudes. (VMC is the minimum control speed with the critical engine inoperative). Also, some airplanes have such an effective rudder that even ... level VMC is lower than stall speed. For these airplanes, demonstrating loss of directional control may be safely conducted by limiting rudder travel to simulate maximum rudder available. Limiting rudder travel should be accomplished well above the power-off stall…