CP.VIII.B.S6

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 5-34
  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…

• Pilot's Handbook of Aeronautical Knowledgep. 5-25
  Chapter 5: Aerodynamics of Flight › Stalls

  This peak is called the CL-MAX. The amount of lift the wing produces drops dramatically after exceeding the CL-MAX or critical AOA, but as stated above, it does not completely stop producing lift. In most straight-wing aircraft ... wing is designed to stall the wing root first. The wing root reaches its critical AOA first making the stall progress outward toward the wingtip. By having the wing root stall first, aileron effectiveness is maintained at the wingtips, maintaining…

• Pilot's Handbook of Aeronautical Knowledgep. 5-36
  Chapter 5: Aerodynamics of Flight › Load Factors › Stalls

  Stalls The normal stall entered from straight-and-level flight, or an unaccelerated straight climb, does not produce added load factors beyond the 1 G of straight-and-level flight. As the stall occurs, however, this load factor ... load on the wings and raise the pilot from the seat) may be produced. During the pull up following stall recovery, significant load factors are sometimes induced. These may be further increased inadvertently during excessive diving (and consequently high airspeed…

• Pilot's Handbook of Aeronautical Knowledgep. 5-26
  Chapter 5: Aerodynamics of Flight › Angle of Attack Indicators

  pilot better situation awareness pertaining to the aerodynamic health of the airfoil. This can also be referred to as stall margin awareness. More simply explained, it is the margin that exists between the current AOA that the airfoil is operating ... which the airfoil will stall (critical AOA). Figure 5-39. Increase in stall speed and load factor. Figure 5-40. Inflight ice formation. Angle of attack is taught to student pilots as theory in ground training. When beginning flight training…

• Airplane Flying Handbookp. 5-12
  Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls

  Stalls A stall is an aerodynamic condition which occurs when smooth airflow over the airplane’s wings is disrupted, resulting in loss of lift. Specifically, a stall occurs when the AOA—the angle between the chord line of the wing ... relative wind—exceeds the wing’s critical AOA. It is possible to exceed the critical AOA at any airspeed, at any attitude, and at any power setting. [Figure 5-8] Figure 5-8. Critical angle of attack and stall…

• Airplane Flying Handbookp. 5-17
  Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Approaches to Stalls (Impending Stalls), Power-On or Power-Off

  Approaches to Stalls (Impending Stalls), Power-On or Power-Off An impending stall occurs when the airplane is approaching, but does not exceed the critical AOA. The purpose of practicing impending stalls is to learn to retain or regain full ... control of the airplane immediately upon recognizing that it is nearing a stall, or that a stall is likely to occur if the pilot does not take appropriate action. Pilot training should emphasize teaching the same recovery technique for impending…