PH.VIII.B.R9

From the FAA library

• Helicopter Flying Handbookp. 5-3
  Chapter 5: Rotorcraft Flight Manual › Operating Limitations (Section 2) › Powerplant Limitations

  Powerplant Limitations The powerplant limitations area describes operating limitations on the helicopter’s engine including such items as rpm range, power limitations, operating temperatures, and fuel and oil requirements. Most turbine engines and some reciprocating engines have a maximum power ... maximum continuous power rating. The “maximum power” rating is the maximum power the engine can generate and is usually limited by time. The maximum power range is depicted by a yellow arc on the engine power instruments, with…

• Helicopter Flying Handbookp. 11-8
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Technique (How to Practice)

  rotor disk begins to dissipate its energy, the engine is up to speed as the needles join when the rotor decreases into the normal flight rpm. Helicopters that do not have the throttle control located on the collective are generally ... exceptions to basic technique and require some additional prudence. The autorotation should be initiated with the power levers left in the “flight,” or normal, position. If a full touchdown is to be practiced, it is common technique to move…

• Pilot's Handbook of Aeronautical Knowledgep. G-33
  Glossary › Pilot’s Operating Handbook/Airplane Flight Manual

  Visual meteorological conditions (VMC). Meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling meeting or exceeding the minimums specified for VFR. VLE. Landing gear extended speed. The maximum speed at which an airplane can be safely flown ... with the landing gear extended. VLO. Landing gear operating speed. The maximum speed for extending or retracting the landing gear if using an airplane equipped with retractable landing gear. VMC. Minimum control airspeed. This is the minimum flight speed…

• Helicopter Flying Handbookp. 11-1
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation

  flight. In addition, by knowing the conditions that can lead to an emergency, many potential accidents can be avoided. Autorotation In a helicopter, an autorotative descent is a power-off maneuver in which the engine is disengaged from the main ... upward flow of air through the rotor. [Figure 11-1] In other words, the engine is no longer supplying power to the main rotor. The most common reason for an autorotation is failure of the engine or drive line…

• Pilot's Handbook of Aeronautical Knowledgep. 11-11
  Chapter 11: Aircraft Performance › Climb Performance Factors › Range Performance

  NOTE: The straight line that is tangent to the sea level power curve is also tangent to the altitude power curve. The effect of altitude on specific range can also be appreciated from the previous relationships. If a change ... altitude causes identical changes in speed and power required, the proportion of speed to power required would be unchanged. The fact implies that the specific range of a propeller-driven aircraft would be unaffected by altitude. Actually, this is true…

• Airplane Flying Handbookp. G-18
  Glossary › Numbers and Symbols

  Stalling speed or the minimum steady flight speed in the landing configuration. In small airplanes, this is the power-off stall speed at the maximum landing weight in the landing configuration (gear and flaps down). The lower limit ... white arc. VS1. Stalling speed or the minimum steady flight speed obtained in a specified configuration. For most airplanes, this is the power-off stall speed at the maximum takeoff weight in the clean configuration (gear up, if retractable…