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useful for the safe and efficient conduct of flights. Flight Level. A surface of constant atmospheric pressure which is related to a specific pressure . datum, 1013.2 hPa, and is separated from other such surfaces by specific pressure intervals. Note 1. A pressure type altimeter calibrated in accordance with the Standard Atmosphere:
Flight Level (FL) A surface of constant atmosphere pressure which is related to a specific pressure datum, 1013.2hPa, and is separated from other such surfaces by specific pressure intervals. Altitude above sea-level in 100 feet units measured according to a standard atmosphere.
Introduction: An altimeter is a type of barometer which measures the vertical distance to the surface, necessary for a pilot to maintain the desired or assigned altitude during flight. Maintaining a current altimeter setting is critical because the atmosphere pressure is never constant.
This document, also known as the Chicago Convention, comprises 96 articles outlining general principles and providing authority for international aviation structures. The Document is supported by 18 annexes which detail Standards and Recommended Practices covering all aspects of aviation.
1-1 When pressure is applied to the airplane controls, one or more of the basic forces changes in magnitude and becomes greater than the opposing force, causing the airplane to accelerate or move in the direction of the applied force.
Origination by Pooleys-Air Pilot Publishing Limited. Published by Pooleys-Air Pilot Publishing Ltd Elstree Aerodrome, Elstree Hertfordshire, WD6 3AW England. Tel: +44(0)20 8953 4870 Web: www.pooleys.com Email: sales@pooleys.com. 1 Ed 14th March 2020.book Page iii Friday, March 20, 2020 12:47 PM. The Air Pilot’s Manual.
With Standard Pressure (1013.2 mb) set, an aircraft altimeter indicates Pressure Altitude (Flight Level), and is used by all aircraft operating above the transition altitude to provide a common datum for vertical measurement.
