Atmosphere Flashcards
(33 cards)
What are the 3 Fundamental Variables of the Atmosphere?
Temperature, Density, Pressure
Hot Air has __ Kinetic Energy
High
Cold Air has __ Kinetic Energy
Low
What is the formula of Gas Law?
P=DT
How does flying on a hot day affect performance?
Air density decrease -> decrease performance
Which Atmosphere has the most avionic events?
Stratosphere
The word ‘Pause’ at the boundary of each Layer refers to?
Pausing the Temp. change until it reverse
What causes Air Circulation?
Solar energy doesn’t distribute equally through the surface of the earth
What are the 3 Cell Circulation and which one isn’t natural?
Polar, Hadley, Farrel (Not Natural)
Why does the Jet stream circulate?
earth is rotating
Where is air pressure heaviest?
Sea Level
What is the equation of Total Pressure?
Static Pressure + Dynamic Pressure
In Static Pressure, is airflow fast or slow?
slow
In Dynamic Pressure, is airflow fast or slow?
fast
If Static Pressure increases, is Density high or low?
High
What is Bernoulli’s Principle?
High Velocity -> Low Pressure
What is the Standard ISA Condition?
15°C at sea level
If Altitude increases by 1000ft, how will the Temp. change?
-2°C/1000ft until reaches 36,000ft
What does Indicated Airspeed correct for?
None it is the most error one
What does Calibrated Airspeed correct for?
Instrument, Position Error Correction
What does Equivalent Airspeed correct for?
Compressibility Effects
What does True Airspeed correct for?
density ratio
Rank the airspeed types from most error to most accurate
Indicated -> Calibrated -> Equivalent -> True Airspeed
Groundspeed is calculated from?
True Airspeed + Wind Velocity
