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  • Chapter 10: Advanced Flight Maneuvers › Maximum Performance Takeoff › Technique

    power available is reached (takeoff power is normally 10 percent above power required for hover). This large collective movement requires a substantial increase in pedal pressure to maintain heading (position 2). Use the cyclic, as necessary ... power setting (position 5). As in any maximum performance maneuver, the techniques used affect the actual results. Smooth, coordinated inputs coupled with precise control allow the helicopter to attain its maximum performance. Figure 10-1. Maximum performance takeoff…

  • Chapter 5: Aerodynamics of Flight › Basic Propeller Principles

    lower the rpm. At cruising altitude, when the aircraft is in level flight and less power is required than is used in takeoff or climb, the pilot again reduces engine power by reducing the manifold pressure and then…

  • Chapter 7: Helicopter Performance › Sample Hover Problem 3 › Climb Performance

    read 66 percent torque required to hover. Climb Performance Figure 7-6. Torque required for cruise or level flight. Most of the factors affecting hover and takeoff performance also affect climb performance. In addition, turbulent air, pilot techniques, and overall ... climb speed (VY) obtains the greatest gain in altitude over a given period of time. This speed is normally used during the climb after all obstacles have been cleared and is usually maintained until reaching cruise altitude. Rate of climb…

  • Chapter 10: Advanced Flight Maneuvers › Running/Rolling Takeoff › Technique

    begin the maneuver, first align the helicopter to the takeoff path. Next, increase the throttle to obtain takeoff rpm, and increase the collective smoothly until the helicopter becomes light on the skids or landing gear (position 1). If taking ... simulate a reduced power condition during practice, use one to two inches less manifold pressure, or three to five percent less torque than that required to hover. The landing gear must stay aligned with the takeoff direction until…

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

    power. But without further use of power, the airplane would probably stall or be incapable of flaring for the landing. Merely lowering the nose of the airplane to regain flying speed in this situation, without the use ... power, would result in a rapid sink rate and corresponding loss of altitude. If during a soft-field takeoff and climb, for example, the pilot attempts to climb out of ground effect without first attaining normal climb pitch attitude…

  • Chapter 7: Propellers › Propeller Aerodynamic Process › Aerodynamic Factors

    consumption and engine wear, and keeps thrust at a maximum. For climb after takeoff, the power output of the engine is reduced to climb power by decreasing the manifold pressure and increasing the blade angle to lower ... increase in airspeed. At cruising altitude, when the aircraft is in level flight and less power is required than is used in takeoff or climb, engine power is again reduced by lowering the manifold pressure and increasing…