SH.VIII.H.R2
Risk managementLanding gear proximity to obstructions on the ground during low altitude hover.
From the FAA library
- 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…
- Chapter 11: Helicopter Emergencies and Hazards › Dynamic Rollover › Precautions
When the upslope skid or wheel hits the ground, the dynamics of the motion can cause the helicopter to bounce off the upslope skid or wheel, and the inertia can cause the helicopter to roll about the downslope ground contact ... This movement may be uncontrollable. If the helicopter develops a roll rate with one skid or wheel on the ground, the helicopter can roll over on its side. Precautions To help avoid dynamic rollover: 1. Always practice hovering autorotations into…
- Chapter 11: Helicopter Emergencies and Hazards › Dynamic Rollover › Normal Takeoffs and Landings
Normal Takeoffs and Landings Dynamic rollover is possible even during normal takeoffs and landings on relatively level ground, if one wheel or skid is on the ground and thrust (lift) is approximately equal to the weight of the helicopter ... takeoff or landing is not performed properly, a roll rate could develop around the wheel or skid that is on the ground. When taking off or landing, perform the maneuver smoothly and carefully adjust the cyclic so that no pitch…
- Chapter 11: Helicopter Emergencies and Hazards › Dynamic Rollover
lateral rolling tendency, called dynamic rollover, when it is in contact with the surface during takeoffs or landings. For dynamic rollover to occur, some factor must first cause the helicopter to roll or pivot around a skid or landing gear ... rollover angle is exceeded, the helicopter rolls on its side regardless of the cyclic corrections made. Figure 11-4. Ground resonance. Dynamic rollover begins when the helicopter starts to pivot laterally around its skid or wheel. For dynamic rollover…
- Chapter 5: Aerodynamics of Flight › Ground Effect
aircraft leaving ground effect after takeoff encounters just the reverse of an aircraft entering ground effect during landing. The aircraft leaving ground effect will: • Require an increase in AOA to maintain the same CL • Experience an increase in induced drag ... nose-up change in moment • Experience a reduction in static source pressure and increase in indicated airspeed Ground effect must be considered during takeoffs and landings. For example, if a pilot fails to understand the relationship between the aircraft…
- 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…