HI.VIII.B.K1

From the FAA library

• Helicopter Flying Handbookp. 7-6
  Chapter 7: Helicopter Performance › Performance Charts › Sample Hover Problem 2

  takeoff location with a specific gross weight does not ensure the same performance at the landing point. If the destination point is at a higher density altitude because of higher elevation, temperature, and/or relative humidity, more power is required ... knowing the temperature and wind conditions, using the performance charts in the helicopter flight manual, and making certain power checks during hover and in flight prior to commencing the approach and landing. For helicopters with dual engines, performance charts provide…

• Aeronautical Information Manualp. 7-1-46
  Chapter 7. Safety of Flight › Section 1. Meteorology › 7-1-18. Pilot Weather Reports (PIREPs)

  clear, few, scattered, broken, or overcast) 8. Weather /WX Flight visibility, precipitation, restrictions to visibility, etc. 9. Temperature /TA Degrees Celsius 10. Wind /WV Direction in degrees magnetic north and speed in knots 11. Turbulence /TB See AIM paragraph ... Airframe Icing a. The effects of ice on aircraft are cumulative-thrust is reduced, drag increases, lift lessens, and weight increases. The results are an increase in stall speed and a deterioration of aircraft performance. In extreme cases…

• Helicopter Flying Handbookp. 10-2
  Chapter 10: Advanced Flight Maneuvers › Maximum Performance Takeoff

  capabilities and limitations of the equipment. Also consider the wind velocity, temperature, density altitude, gross weight, center of gravity (CG) location, and other factors affecting pilot technique and the performance of the helicopter. To accomplish this type of takeoff safely ... there must be enough power to hover out of ground effect (OGE) in order to prevent the helicopter from sinking back to the surface after becoming airborne. A hover power check can be used to determine if there is sufficient…

• Pilot's Handbook of Aeronautical Knowledgep. 11-17
  Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Landing Performance

  blown out from braking at this point. The most critical conditions of landing performance are combinations of high gross weight, high density altitude, and unfavorable wind. These conditions produce the greatest required landing distances and critical levels of energy dissipation ... prediction of minimum landing distance from the AFM/POH data, the following considerations must be given: • Pressure altitude and temperature—to define the effect of density altitude • Gross weight—which defines the CAS for landing • Wind—a large effect…

• Pilot's Handbook of Aeronautical Knowledgep. 10-6
  Chapter 10: Weight and Balance › Control › Weight and Balance Restrictions

  that affect takeoff and climb performance, such as high elevations, high temperatures, and high humidity (high density altitudes), may require a reduction in weight before flight is attempted. Other factors to consider when computing weight and balance distribution prior ... takeoff are runway length, runway surface, runway slope, surface wind, and the presence of obstacles. These factors may require a reduction in or redistribution of weight prior to flight. Figure 10-4. Establishing a balance. Some aircraft are designed…

• Pilot's Handbook of Aeronautical Knowledgep. 17-14
  Chapter 17: Aeromedical Factors › Hydraulic Fluid › Dehydration and Heatstroke

  flight decks and flight lines, wind, humidity, and diuretic drinks—coffee, tea, alcohol, and caffeinated soft drinks. Some common signs of dehydration are headache, fatigue, cramps, sleepiness, and dizziness. The first noticeable effect ... dehydration is fatigue, which in turn makes top physical and mental performance difficult, if not impossible. Flying for long periods in hot summer temperatures or at high altitudes increases the susceptibility to dehydration because these conditions tend to increase…