The Atmosphere Flashcards
ISA temperature at 11km (36000)
-56.5 Celsius
Most ozone occurs at
20km
Tropopause heights at:
a) equator
b) mid lat
c) poles
a) 16 km
b) 11 km
c) 8 km
ISA mean sea level pressure
- 25 mb or hPa
29. 92 inHG
ISA mean sea level temp and density
+15c
1225 gm3
Lapse rate up to 20km
- 1.98 c/1000 ft
- 6.4 c/1000m
Lapse rate 20-32km
+0.3 c/1000ft
ISA temperature equation upto tropopause
ISA = 15 - ( 2Alt/1000 )
ISA deviation equation
OAT=ISA+dev
Name of 3 weather systems heated from sun
Polar
Ferrel
Hadley
QFF
QFE adjusted to MSL using prevailing lapse rate
QNE
Reading on ground of altimeter when set to STD
Lapse rate feet/meters per mb
27ft or 8m per mb
Pressure at 10 20 30 40 50 thousand feet ISA?
700 500 300 200 100
Pressure lapse rate equation
Lapse rate = 96T/P
Pressure drops. Does the ac climb or descend?
Descends?