SH.IV.E.S3

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• Helicopter Flying Handbookp. 10-8
  Chapter 10: Advanced Flight Maneuvers › Slope Operations › Technique

  Technique Refer to Figure 10-6. At the termination of the approach, if necessary, move the helicopter slowly toward the slope, being careful not to turn the tail upslope. Position the helicopter across the slope at a stabilized hover headed ... into the wind over the intended landing spot (frame 1). Downward pressure on the collective starts the helicopter descending. As the upslope skid touches the ground, hesitate momentarily in a level attitude, then apply slight lateral cyclic in the direction…

• Helicopter Flying Handbookp. 10-7
  Chapter 10: Advanced Flight Maneuvers › Slope Operations

  Slope Operations Prior to conducting any slope operations, be thoroughly familiar with the characteristics of dynamic rollover and mast bumping, which are discussed in Chapter 11, Helicopter Emergencies and Hazards. The approach to a slope is similar to the approach ... other landing area. During slope operations, make allowances for wind, barriers, and forced landing sites in case of engine failure. Since the slope may constitute an obstruction to wind passage, anticipate turbulence and downdrafts. Slope Landing A pilot usually lands…

• Pilot's Handbook of Aeronautical Knowledgep. 14-20
  Chapter 14: Airport Operations › Wind Direction Indicators

  Wind Direction Indicators It is important for a pilot to know the direction of the wind. At facilities with an operating control tower, this information is provided by ATC. Information may also be provided by FSS personnel either located ... receive and broadcast on this frequency. When none of these services is available, it is possible to determine wind direction and runway in use by visual wind indicators. A pilot should check these wind indicators even when information is provided…

• Helicopter Flying Handbookp. 13-12
  Chapter 13: Effective Aeronautical Decision-Making › Risk Management › Using the 3P Model to Form Good Safety Habits

  further mitigate this risk the pilot has selected mental checkpoints along the approach path that will serve as go/no-go points should the pilot feel any assessed parameter is being exceeded. Wind direction and velocity are assessed as a medium risk ... because (for this scenario) the direction of the wind is slightly offset from the chosen approach path, creating a 15–20° crosswind with a steady 10-knot wind. The pilot also takes into consideration that, due to the terrain…

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

  preselected departure path when it is not visible while sitting in the confined area. Figure 10-8. If the wind velocity is 10 knots or greater, expect updrafts on the windward side and downdrafts on the lee side of obstacles ... Plan the approach with these factors in mind, but be ready to alter plans if the wind speed or direction changes. Approach A high reconnaissance should be completed before initiating the confined area approach. Start the approach phase using…

• Aviation Weather Handbookp. 10-14
  10 Wind › 10.6 Local Winds › 10.6.5 Mountain-Plains Wind System

  Valley Breeze A valley breeze (see Figure 10-19) is a wind that ascends a mountain valley during the day. Air in contact with the sloping terrain becomes warmer (less dense) than air above the valley. This is because ... contact with the sloping terrain heats up faster than air above the valley. Figure 10-19. Valley Breeze Pressure gradients develop (along a horizontal reference) with lower pressure over the warmer sloping terrain and higher pressure over the cooler valley…