PH.VI.C.S5

From the FAA library

• Helicopter Flying Handbookp. 7-3
  Chapter 7: Helicopter Performance › Performance Charts › The Effect of Weight Versus Density Altitude

  Effect of Weight Versus Density Altitude The height/velocity diagram [Figure 7-1] depicts altitude and airspeed situations from which a successful autorotation can be made. The time required, and therefore, altitude necessary to attain a steady state autorotative descent ... dependent on the weight of the helicopter and the density altitude. For this reason, the H/V diagram is valid only when the helicopter is operated in accordance with the gross weight versus density altitude chart. If published, this chart…

• Pilot's Handbook of Aeronautical Knowledgep. 8-6
  Chapter 8: Flight Instruments › Altimeter Operation

  altimeter indicates an altitude above the actual field elevation. If the barometric pressure setting is reset to the current altimeter setting of 29.68 "Hg, then the field elevation is again indicated on the altimeter. This pressure change ... easily noticed in flight since aircraft fly at specific altitudes. The aircraft steadily decreases true altitude while the altimeter is held constant through pilot action as discussed in the previous section. Knowing the aircraft’s altitude is vitally important…

• Helicopter Flying Handbookp. 9-15
  Chapter 9: Basic Flight Maneuvers › Common Errors › S-Turns

  Common Errors 1. Faulty entry technique. 2. Poor planning, orientation, and/or division of attention. 3. Uncoordinated flight control application. 4. Improper correction for wind drift. 5. Failure to maintain selected altitude and airspeed. 6. Selection of a ground reference with ... size on opposite sides of the reference line. [Figure 9-16] The maneuver should be performed at a constant altitude between 500 and 800 feet above the terrain. As mentioned previously, if the student pilot is having a difficult time…

• Helicopter Flying Handbookp. 7-4
  Chapter 7: Helicopter Performance › The Effect of Weight Versus Density Altitude › Autorotational Performance

  Moving vertically to the bottom of the graph (point C), with the existing density altitude, the maximum gross weight under which the height/velocity diagram is applicable is 2,500 pounds. The production of performance charts and diagrams for helicopters ... charts state that autorotational descent performance is a function of indicated airspeed (IAS) and is essentially unaffected by density altitude and gross weight. Keep in mind that, at some point, the potential energy expended during the autorotation is converted into…

• Helicopter Flying Handbookp. 9-4
  Chapter 9: Basic Flight Maneuvers › Turns › Technique

  helicopter is in a climbing or descending attitude rather than that of level flight. If a so-called simultaneous entry (entering a turn while, at the same time, climbing or descending) is desired, merely combine the techniques of both maneuvers ... climb or descent entry and turn entry. When recovering from a climbing or descending turn, the desired heading and altitude are rarely reached at the same time. If the heading is reached first, stop the turn and maintain the climb…

• 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…