Air Speed Flashcards
What is the pressure at sealevel?
1013hPa
Whats the equation for volume flow?
Frontal area x speed
Whats the equation for mass flow?
Density x volume flow
What happens to temperature/pressure/humidity when the air density increases?
P increase T+h decrease
How much does the air temperature decrease by every 1000ft?
2’
What happens to static pressure as altitude increases?
Decreases
What 2 things does dynamic pressure depend upon?
1) density 2) velocity
What 2 things does dynamic pressure depend upon?
1) density 2) velocity
What is IAS^2 proportional to?
Dynamic pressure
Explain the 4 speeds and what they each mean?
Indicated(instrument position) calibrated(compressibility) equivalent(density) true(navigation)
When density =1.225 what is the speed?
TAS
What happens to the TAS when density decreases?
Increases
What happens to the TAS when density decreases?
Increases