HI.XII.A.S12

From the FAA library

• Helicopter Flying Handbookp. 10-10
  Chapter 10: Advanced Flight Maneuvers › Confined Area Operations › Takeoff

  wide margin but with a dangerously low rpm and no power reserve. Always make the landing to a specific point and not to some general area. This point should be located well forward, away from the approach ... more confined the area is, the more essential it is that the helicopter land precisely at a definite point. Keep this point in sight during the entire final approach. When flying a helicopter near obstacles, always consider the tail rotor…

• Helicopter Flying Handbookp. 10-10
  Chapter 10: Advanced Flight Maneuvers › Confined Area Operations › Common Errors

  Under certain conditions, sideward flight to the takeoff position may be preferred, but rearward flight may be necessary, stopping often while moving to check on the location of obstacles relative to the tail rotor. When planning the takeoff, consider ... obstructions, and forced landing areas. To help fly up and over an obstacle, form an imaginary line from a point on the leading edge of the helicopter to the highest obstacle to be cleared. Fly this line of ascent with…

• Helicopter Flying Handbookp. 10-3
  Chapter 10: Advanced Flight Maneuvers › Maximum Performance Takeoff › Technique

  check can be used to determine if there is sufficient power available to accomplish this maneuver. The angle of climb for a maximum performance takeoff depends on existing conditions. The more critical the conditions are, such as high-density altitudes ... calm winds, and high gross weights, the shallower the angle of climb is. In light or no wind conditions, it might be necessary to operate in the crosshatched or shaded areas of the height/velocity diagram during the beginning of this…

• Pilot's Handbook of Aeronautical Knowledgep. 11-19
  Chapter 11: Aircraft Performance › Performance Charts

  Performance Charts Performance charts allow a pilot to predict the takeoff, climb, cruise, and landing performance of an aircraft. These charts, provided by the manufacturer, are included in the AFM/POH. Information the manufacturer provides on these charts has been gathered ... from test flights conducted in a new aircraft, under normal operating conditions while using average piloting skills, and with the aircraft and engine in good working order. Engineers record the flight data and create performance charts based on the behavior…

• Helicopter Flying Handbookp. 7-8
  Chapter 7: Helicopter Performance › Performance Charts › Sample Cruise or Level Flight Problem

  Atmospheric wind affects only the groundspeed, or speed at which the helicopter is moving over the Earth’s surface. Thus, the only climb performance affected by atmospheric wind is the angle of climb and not the rate of climb. When ... planning for climb performance, it is first important to plan for torque settings at level flight. Climb performance charts show the change in torque, above or below torque, required for level flight under the same gross weight and atmospheric conditions…

• Pilot's Handbook of Aeronautical Knowledgep. 11-9
  Chapter 11: Aircraft Performance › Climb Performance Factors › Range Performance

  This is the point of maximum endurance. Beyond this point, increases in airspeed come at a cost. Airspeed increases require additional power and fuel flow increases with additional power. Cruise flight operations for maximum range should be conducted so that ... range = NM/hour pounds of fuel/hour or specific range = knots fuel flow If maximum specific range is desired, the flight condition must provide a maximum of speed per fuel flow. While the peak value of specific range would provide maximum range…