SH.VI.B.S9

From the FAA library

• Helicopter Flying Handbookp. 10-9
  Chapter 10: Advanced Flight Maneuvers › Confined Area Operations

  turning or pivoting motion. 5. Turning the tail of the helicopter into the slope during takeoff. Confined Area Operations A confined area is an area where the flight of the helicopter is limited in some direction by terrain ... woods, a city street, a road, a building roof, etc., can each be regarded as a confined area. The helicopter pilot has added responsibilities when conducting operations from a confined area that airplanes pilots do not. He or she assumes…

• Helicopter Flying Handbookp. 11-17
  Chapter 11: Helicopter Emergencies and Hazards › System Malfunctions › Landing—Stuck Left Pedal

  power setting during the approach and ensures that the nose remains to the right. Upon reaching the intended touchdown area and at the appropriate landing gear height, increase the collective smoothly to align the nose with the landing direction ... cushion the landing. A small amount of forward cyclic is helpful to stop the nose from continuing to the right and directs the aircraft forward and down to the surface. In certain wind conditions, the nose of the helicopter…

• Pilot's Handbook of Aeronautical Knowledgep. 5-44
  Chapter 5: Aerodynamics of Flight › High Speed Flight › Subsonic Versus Supersonic Flow

  Compressibility (and to a lesser extent viscosity) is of paramount importance at speeds approaching the speed of sound. In these speed ranges, compressibility causes a change in the density of the air around an aircraft. During flight, a wing produces ... lift by accelerating the airflow over the upper surface. This accelerated air can, and does, reach sonic speeds even though the aircraft itself may be flying subsonic. At some extreme AOAs, in some aircraft, the speed of the air over…

• Pilot's Handbook of Aeronautical Knowledgep. G-33
  Glossary › Pilot’s Operating Handbook/Airplane Flight Manual

  expressed in terms of visibility, distance from cloud, and ceiling meeting or exceeding the minimums specified for VFR. VLE. Landing gear extended speed. The maximum speed at which an airplane can be safely flown with the landing gear extended ... Landing gear operating speed. The maximum speed for extending or retracting the landing gear if using an airplane equipped with retractable landing gear. VMC. Minimum control airspeed. This is the minimum flight speed at which a light, twin-engine airplane…

• Pilot's Handbook of Aeronautical Knowledgep. 5-9
  Chapter 5: Aerodynamics of Flight › Wingtip Vortices › Avoiding Wake Turbulence

  Helicopter vortices should be avoided because helicopter forward flight airspeeds are often very slow and can generate exceptionally strong wake turbulence. Wind is an important factor in avoiding wake turbulence because wingtip vortices drift with the wind at the speed ... wind. For example, a wind speed of 10 knots causes the vortices to drift at about 1,000 feet in a minute in the wind direction. When following another aircraft, a pilot should consider wind speed and direction when selecting…

• Helicopter Flying Handbookp. 11-5
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Technique (How to Practice)

  When forward motion decreases to the desired groundspeed—usually the lowest possible speed (position 4)—move the cyclic forward to place the helicopter in the proper attitude for landing. This action gives the student an idea of airframe attitude ... avoid, because a pilot should never allow ground contact unless the helicopter is more nose-low than that attitude. Limiting the flare to that attitude may result in slightly faster touchdown speeds but will eliminate the possibility of tail rotor…