PH.V.C.K3

From the FAA library

• Helicopter Flying Handbookp. 7-2
  Chapter 7: Helicopter Performance › Performance Charts › Height/Velocity Diagram

  every condition shown on a performance chart. Instead, they evaluate specific data and mathematically derive the remaining data. Height/Velocity Diagram The height/velocity (H/V) diagram shows the combinations of airspeed and height above the ground, which will allow an average pilot ... successfully complete a landing after an engine failure. By carefully studying the height/velocity diagram, a pilot is able to avoid the combinations of altitude and airspeed that may not allow sufficient time or altitude to enter a stabilized autorotative descent…

• Helicopter Flying Handbookp. 7-2
  Chapter 7: Helicopter Performance › Factors Affecting Performance › Moisture (Humidity)

  Factors Affecting Performance A helicopter’s performance is dependent on the power output of the engine and the lift produced by the rotors, whether it is the main rotor(s) or tail rotor. Any factor that affects engine and rotor ... efficiency affects performance. The three major factors that affect performance are density altitude, weight, and wind. The Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25 (as revised), discusses these factors in great detail. Moisture (Humidity) Humidity alone…

• Pilot's Handbook of Aeronautical Knowledgep. 11-8
  Chapter 11: Aircraft Performance › Performance › Climb Performance Factors

  Climb Performance Factors Since weight, altitude and configuration changes affect excess thrust and power, they also affect climb performance. Climb performance is directly dependent upon the ability to produce either excess thrust or excess power. Earlier in the book ... Aircraft designers go to great lengths to minimize the weight, since it has such a marked effect on the factors pertaining to performance. A change in an aircraft’s weight produces a twofold effect on climb performance. First, a change…

• Pilot's Handbook of Aeronautical Knowledgep. 17-10
  Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Water Refraction

  pilot flying a lower approach. Atmospheric haze can create an illusion of being at a greater distance and height from the runway. As a result, the pilot has a tendency to be low on the approach. Conversely, extremely clear ... overshoot or go around. The diffusion of light due to water particles on the windshield can adversely affect depth perception. The lights and terrain features normally used to gauge height during landing become less effective for the pilot. Flying into…