Atmosphere Flashcards
1
Q
Most important air propriety
A
thickness of air
2
Q
Dynamic pressure
A
air in motion must possess kinetic energy, it is call dynamic because air is moving in relation with the object
1/2 ρ V^2
3
Q
Density
A
mass per unit volume, it varies with static pressure, temperature and humidity:
- density decrease if static pressure decreases
- density decrease T increase
- density decrease Humidity Incr
4
Q
Total pressure
A
It is always constant and is the result of
Pt = Pd + Ps
5
Q
TAS
A
The speed of the aircraft through the air. THE ONLY SPEED THERE IS - All the other, so called, speeds are pressures
6
Q
Speed
A
see the ch on instrument
