UA.III.B.K1c
KnowledgeWeather factors and their effects on performance.
Atmospheric stability, pressure, and temperature
From the FAA library
- Glossary › Pilot’s Operating Handbook/Airplane Flight Manual
layer of the atmosphere extending from the surface to a height of 20,000 to 60,000 feet, depending on latitude. True airspeed. Actual airspeed, determined by applying a correction for pressure altitude and temperature to the CAS. True altitude ... welding the tubing together into a series of triangular shapes, called trusses. T-tail. An aircraft with the horizontal stabilizer mounted on the top of the vertical stabilizer, forming a T. Turbine discharge pressure. The total pressure at the discharge…
- Chapter 12: Weather Theory › Atmospheric Stability
rises, pressure decreases, volume increases, and temperature decreases. When air descends, the opposite is true. The rate at which temperature decreases with an increase in altitude is referred to as its lapse rate. As air ascends through the atmosphere ... feet. The combination of moisture and temperature determine the stability of the air and the resulting weather. Cool, dry air is very stable and resists vertical movement, which leads to good and generally clear weather. The greatest instability occurs when…
- Chapter 12: Weather Theory › Atmospheric Stability › Temperature/Dew Point Relationship
Relative Humidity Humidity refers to the amount of water vapor present in…
- Glossary
reduction of atmospheric pressure and cools as it expands. Adiabatic heating. A process of heating dry air through compression. For example, as air moves down a slope it is compressed, which results in an increase in temperature. Adjustable-pitch propeller ... ground adjustable propeller. Sometimes also used to refer to constant-speed propellers that are adjustable in flight. Adjustable stabilizer. A stabilizer that can be adjusted in flight to trim the airplane, thereby allowing the airplane to fly hands…