Standard sea-level conditions
(Redirected from Sea level standard)
Standard sea-level conditions (SSL),[1] also known as sea-level standard (SLS), defines a set of atmospheric conditions for physical calculations. The term "standard sea level" is used to indicate that values of properties are to be taken to be the same as those standard at sea level, and is done to define values for use in general calculations.
Atmospheric properties
[edit | edit source]At SSL some atmospheric properties are:[2]
- Pressure, P = 101.325 kPa ⇔ 2116.2 lbf/ft2 ⇔ 14.696 lbf/in2 ⇔ 760 mmHg ⇔ 29.92 inHg
- Density, = 1.225 kg/m3 ⇔ 0.002377 slug/ft3
- Temperature, T = 15 °C ⇔ 59 °F ⇔ 288.15 K ⇔ 518.67 °R
- Gas constant of air, Rair = 287.057 J/(kg·K) ⇔ 1716.59 ft·lb/sl·°R)
- Specific Weight, = 12.014 N/m3 ⇔ 0.07647 lbf/ft3
- Dynamic viscosity, = 1.789×10−5 Pa·s ⇔ 3.737×10−7 slug/(s·ft)
- Acceleration of gravity, g0 = 9.807 m/s2 ⇔ 32.174 ft/s2
See also
[edit | edit source]References
[edit | edit source]- ^ Stephen Corda, Introduction to Aerospace Engineering with a Flight Test Perspective, John Wiley & Sons, 2017. [1]
- ^ Aerodynamics, aeronautics, and flight mechanics by Barnes Warnock McCormick Edition: illustrated Published by Wiley, 1979 Original from the University of Michigan Digitized Dec 14, 2007 Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)., 978-0-471-03032-4 652 pages
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
