HI.VIII.C.S4

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• 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. 5-3
  Chapter 5: Rotorcraft Flight Manual › Operating Limitations (Section 2) › Rotor Limitations

  Altitude Limitations If the rotorcraft has a maximum operating density altitude (see page 7-2), it is indicated in this section of the flight manual. Sometimes the maximum altitude varies based on different gross weights. Rotor Limitations Low rpm does ... produce sufficient lift, and high rpm may cause structural damage, therefore rotor rpm limitations have minimum and maximum values. A green arc depicts the normal operating range with red lines showing the minimum and maximum limits. [Figure 5-3] There…

• Helicopter Flying Handbookp. 9-12
  Chapter 9: Basic Flight Maneuvers › Normal Takeoff from a Hover › Technique

  Normal Takeoff from a Hover A normal takeoff from a hover is an orderly transition to forward flight and is executed to increase altitude safely and expeditiously. Before initiating a takeoff, the pilot should ensure that the proper checklist ... been completed and the helicopter systems are within normal limits. During the takeoff, fly a profile that avoids the cross-hatched or shaded areas of the height/velocity diagram. Technique Refer to Figure 9-12 (position 1). Bring the helicopter…

• Helicopter Flying Handbookp. 9-12
  Chapter 9: Basic Flight Maneuvers › Normal Takeoff from the Surface › Technique

  Failing to adjust the throttle to maintain proper rpm. 7. Failing to transition to a level crab to maintain ground track. Figure 9-12. The helicopter takes several positions during a normal takeoff from hover. Normal Takeoff from the Surface ... Normal takeoff from the surface is used to move the helicopter from a position on the surface into effective translational lift and a normal climb using a minimum amount of power. If the surface is dusty or covered with loose…

• Pilot's Handbook of Aeronautical Knowledgep. 9-3
  Chapter 9: Flight Manuals and Other Documents › Powerplant

  Powerplant The Powerplant Limitations portion describes operating limitations on an aircraft’s reciprocating or turbine engine(s). These include limitations for takeoff power, maximum continuous power, and maximum normal operating power, which is the maximum power the engine can produce ... this area are the minimum and maximum oil and fuel pressures, oil and fuel grades, and propeller operating limits. [Figure 9-3] All reciprocating-engine powered aircraft must have a revolutions per minute (rpm) indicator for each engine. Aircraft equipped…