From TheBestLinks.com
fr:Army Standard Metro
The Army Standard Metro atmosphere, now used only in ballistics, defines sea-level conditions as 29.5275 inHg (99.9916 kPa) of pressure, 59°F (15°C) of temperature and 78% humidity. (Ref: U.S. Army Ballistic Research Laboratory, U.S. Army Aberdeen Proving Ground)
The International Civil Aviation Organisation (ICAO) defines the sea-level International Standard Atmosphere (ISA) as 101.325 kPa, 15°C and 0% humidity. These values provide a reference for calculating various aircraft performance figures, such as endurance, range, airspeed, and fuel consumption. When used to calculate performance at any pressure altitude other than sea level, the temperature is adjusted using the prescribed dry adiabatic lapse rates (which are -6,5°C/km for the first 11 km).
(Ref: Manual of the ICAO Standard Atmosphere (extended to 80 kilometres (262 500 feet)), Doc 7488 / Third Edition, 1993)
In chemistry, the term standard temperature and pressure (abbreviated STP) denotes 0°C (273.15 K) and a pressure of 1 atm (defined as 101.325 kPa).
The term Standard Ambient Temperature and Pressure (abbreviated SATP) denotes a reference temperature of 25°C (298.15 K) and a pressure of 100 kPa.
See also:
Related links
Top visited
0 of
0 links
[no links posted yet]
>> place link >>
Discussion
Last posted
0 of
0 messages
[no messages posted yet]
>> post message >>
Watch
You can
add this article to your own "watchlist" and receive e-mail notification about all changes in this page.
