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International, Standard Atmosphere
Altitude, Z =
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
15,000
20,000
25,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
150,000
200,000
250,000
300,000
400,000
500,000
600,000
800,000
1,000,000
m
Temperature, T =
K
Pressure, P =
bar
Density,
ρ =
kg/m
3
Gravity, g =
m/s
2
molecular weight, M =
kg/kmol
velocity of sound, a =
m/s
mean free path,
λ =
m
geopotential altitude, H =
m
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