FH.II.G.K2a
KnowledgeFactors affecting performance, including:
Atmospheric conditions
From the FAA library
- Chapter 11: Aircraft Performance
Chapter 11: Aircraft Performance This chapter discusses the factors that affect aircraft performance, which include the aircraft weight, atmospheric conditions, runway environment, and the fundamental physical laws governing the forces acting on an aircraft. The performance or operational information section ... tabular form, while others use graphs. In addition, the performance data may be presented on the basis of standard atmospheric conditions, pressure altitude, or density altitude. The performance information in the AFM/POH has little or no value unless the user…
- Chapter 11: Aircraft Performance › Density Altitude
increase in air density means a lower density altitude. Density altitude is used in calculating aircraft performance. Under standard atmospheric condition, air at each level in the atmosphere has a specific density; under standard conditions, pressure altitude and density altitude ... identify the same level. Density altitude, then, is the vertical distance above sea level in the standard atmosphere at which a given density is to be found. Figure 11-3. Field elevation versus pressure. The aircraft is located…
- Chapter 7: Helicopter Performance › Performance Charts › Sample Cruise or Level Flight Problem
show the change in torque, above or below torque, required for level flight under the same gross weight and atmospheric conditions to obtain a given rate of climb or descent. Sample Cruise or Level Flight Problem Determine torque setting…
- Chapter 4: Principles of Flight › Pressure › Density Altitude
density means a lower density altitude. Density altitude is used in calculating aircraft performance because under standard atmospheric conditions, air at each level in the atmosphere not only has a specific density, its pressure altitude and density altitude identify ... pressure altitude) and temperature. Since aircraft performance data at any level is based upon air density under standard day conditions, such performance data apply to air density levels that may not be identical with altimeter indications. Under conditions higher…
- Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Technique (How to Practice)
rate at which it is applied depend upon the particular helicopter being used, its gross weight, and the existing atmospheric conditions. Cyclic control is used to maintain a level attitude and to ensure a vertical descent. Maintain heading with antitorque…
- Chapter 11: Helicopter Emergencies and Hazards › Vortex Ring State
roll the throttle completely to idle. 6. Failure to hover at a safe altitude for the helicopter type, atmospheric conditions, and the level of training/ proficiency of the pilot. 7. Failure to go around if not within limits and specified…