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  • Chapter 11: Aircraft Performance › Climb Performance Factors › Region of Reversed Command

    normal command. Flight in the region of reversed command means flight in which a higher airspeed requires a lower power setting and a lower airspeed requires a higher power setting to hold altitude. It does not imply that a decrease ... power produces lower airspeed. The region of reversed command is encountered in the low speed phases of flight. Flight speeds below the speed for maximum endurance (lowest point on the power curve) require higher power settings with a decrease…

  • Chapter 13: Transition to Multiengine Airplanes › Spin Awareness and Stalls › Power-On Approach to Stall (Takeoff and Departure)

    Power-On Approach to Stall (Takeoff and Departure) A power-on approach to stall is trained and checked to simulate problematic takeoff scenarios. A power-on approach to stall may be performed from straight-and-level flight or from shallow ... medium banked turns (up to 20 degrees of bank). To initiate a power-on approach to stall maneuver, the area surrounding the airplane should always be cleared to look for potential traffic. The airplane is slowed to the manufacturer…

  • Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Full Stalls, Power-On

    Full Stalls, Power-On Power-on stall recoveries are practiced from straight climbs and climbing turns (15° to 20° bank) to help the pilot recognize the potential for an accidental stall during takeoff, go around, climb, or when trying ... clear an obstacle. Airplanes equipped with flaps or retractable landing gear should normally be in the takeoff configuration; however, power-on stalls should also be practiced with the airplane in a clean configuration (flaps and gear retracted) to ensure practice…

  • Chapter 15: Transition to Turbopropeller-Powered Airplanes › Turboprop Airplane Electrical Systems

    generators used in turboprop airplanes double as starter motors and are called “starter/generators.” The starter/generator uses electrical power to produce mechanical torque to start the engine and then uses the engine’s mechanical torque to produce electrical power after ... engine is running. Some of the DC power produced is changed to 28 volt 400 cycle alternating current (AC) power for certain avionic, lighting, and indicator synchronization functions. This is accomplished by an electrical component called an inverter. The distribution…

  • Chapter 9: Approaches and Landings › Power-Off Accuracy Approaches › 180° Power-Off Approach

    landing away from the spot than to make a poor landing precisely on or just past the spot. 180° Power-Off Approach The 180° power-off approach is executed by gliding with idle power from a given point ... preselected landing spot. [Figure 9-27] It is an extension of the principles involved in the 90° power-off approach just described. The objective is to further develop judgment in estimating distances and glide ratios, in that the airplane…

  • Chapter 9: Aircraft Electrical System › Introduction › Power Factor

    Power Factor As seen in Figure 9-30, the resistive power and the reactive power effect the circuit at right angles to each other. The power factor in an AC circuit is created by this right angle effect. Power factor ... defined as the mathematical difference between true power and apparent power. Power factor (PF) is a ratio and always a measurement between 0 and 100. The power factor is directly related to the phase shift of a circuit. The greater…