Sport Pilot for Helicopter - Simplified Flight Controls › V. Takeoffs, Landings, and Go-Arounds › Task H. Shallow Approach and Running/Roll-On Landing

SH.V.H.K2

Knowledge

Effects of wind, weight, temperature, and density altitude.

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Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Pilot's Handbook of Aeronautical Knowledge p. 11-16
Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Landing Performance
data, the following primary considerations must be given: • Pressure altitude and temperature—to define the effect of density altitude on distance • Gross weight—a large effect on distance • Wind—a large effect due to the wind or wind component along…
Pilot's Handbook of Aeronautical Knowledge p. 11-16
Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Takeoff Performance
approximated by assuming a direct variation with density. Actually, this assumed variation would closely approximate the effect on aircraft with high thrust-to-weight ratios. Proper accounting of pressure altitude and temperature is mandatory for accurate prediction of takeoff roll ... distance. The most critical conditions of takeoff performance are the result of some combination of high gross weight, altitude, temperature, and unfavorable wind. In all cases, the pilot must make an accurate prediction of takeoff distance from the performance data…
Helicopter Flying Handbook p. 7-6
Chapter 7: Helicopter Performance › Performance Charts › Sample Hover Problem 2
effect hovering ceiling versus gross weight chart. These two sample problems emphasize the importance of determining the gross weight and hover ceiling throughout the entire flight operation. Being able to hover at the takeoff location with a specific gross weight ... higher density altitude because of higher elevation, temperature, and/or relative humidity, more power is required to hover there. You should be able to predict whether hovering power will be available at the destination by knowing the temperature and wind conditions…
Helicopter Flying Handbook p. 10-2
Chapter 10: Advanced Flight Maneuvers › Maximum Performance Takeoff
maximum performance takeoff, know thoroughly the 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 ... 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…