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IL.II.E.K1c

Knowledge

Aircraft systems, including:

Powerplant(s) and means of producing thrust

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From the FAA library

  • Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Takeoff Performance

    minimum safe speeds at which the aircraft can become airborne. Any attempt to take off below the recommended speed means that the aircraft could stall, be difficult to control, or have a very low initial ROC. In some cases ... temperature on certain items of powerplant performance, density altitude defines specific effects on takeoff performance. An increase in density altitude can produce a twofold effect on takeoff performance: 1. Greater takeoff speed 2. Decreased thrust and reduced net accelerating force…

  • Chapter 11: Aircraft Performance › Performance › Straight-and-Level Flight

    remain in steady, level flight, equilibrium must be obtained by a lift equal to the aircraft weight and a powerplant thrust equal to the aircraft drag. Thus, the aircraft drag defines the thrust required to maintain steady, level flight ... prevail. The unaccelerated condition of flight is achieved with the aircraft trimmed for lift equal to weight and the powerplant set for a thrust to equal the aircraft drag. The maximum level flight speed for the aircraft is obtained when…

  • Chapter 5: Aerodynamics of Flight › Thrust

    Figure 5-2. Force vectors during a stabilized climb. Likewise, if the engine power is increased, thrust becomes greater than drag and the airspeed increases. As long as the thrust continues to be greater than the drag, the aircraft continues ... accelerate. When drag equals thrust, the aircraft flies at a constant airspeed. Straight-and-level flight may be sustained at a wide range of speeds. The pilot coordinates AOA and thrust in all speed regimes if the aircraft…

  • Chapter 7: Aircraft Systems

    ignition, as well as the fuel, lubrication, cooling, electrical, landing gear, and environmental control systems. An aircraft engine, or powerplant, produces thrust to propel an aircraft. Reciprocating engines and turboprop engines work in combination with a propeller to produce thrust ... Turbojet and turbofan engines produce thrust by increasing the velocity of air flowing through the engine. All of these powerplants also drive the various systems that support the operation of an aircraft. Reciprocating Engines Most small aircraft are designed with…

  • Chapter 5: Aerodynamics of Flight

    National Aeronautics and Space Administration (NASA) Beginner’s Guide to Aerodynamics at www.grc.nasa.gov/ www/k-12/airplane/bga.html. Chapter 5: Aerodynamics of Flight Thrust, drag, lift, and weight are forces that act upon all aircraft in flight. Understanding how these forces work and knowing ... aircraft during flight maneuvers. The four forces acting on an aircraft in straight-and-level, unaccelerated flight are thrust, drag, lift, and weight. They are defined as follows: • Thrust—the forward force produced by the powerplant/ propeller or rotor…

  • Chapter 2: Aerodynamics of Flight › Newton’s Third Law of Motion › Thrust

    main rotor blades, to the total rotor disk area. This ratio provides a means to measure the potential for a rotor disk to provide thrust and lift. The mathematical calculations needed to calculate the solidity ratio for each helicopter ... produce and maintain lift. Many helicopter accidents are caused from the rotor disk being overloaded. Simply put, pilots attempt maneuvers that require more lift than the rotor disk can produce or more power than the helicopter’s powerplant can provide…