Aircraft Performance Flashcards
What is as effect of Temperature on Density
In the atmosphere both temperatures and pressure decrease
Humidity is
The small amount of water vapor suspended in the atmosphere may be negligible under certain conditions
What is atmospheric pressure
Basic factor in weather changes helps to lift the aircraft and actuates some of the most important flight instruments
Pressure altitude is
The night above the standard datum plane
You can determine pressure altitude by
By setting the barometric scale of the altimeter to 29.92 and reading the indicated altitude
Or by using a flight computer and or by applying a correction factor to the indicated altitude according to the reported altimeter setting
Density altitude is
The altitude in standard atmosphere corresponding to a particular value of air density
The term performance is
An term used to describe the ability of an aircraft to accomplish certain things that make it useful for a certain purpose
What are the primary factors most affected by performance are
the takeoff and landing distances, rate of climb, ceiling, payload, range, speed, maneuverability, stability, and fuel economy
Parasite drag predominates at
High speeds
Induced drag predominates at
Low speeds
Power loading is
Is expressed in pounds per horsepower and is obtained by dividing the total weight of the aircraft by the rate of horsepower of the engine
.
“Effects takeoff and climb abilities”
Wings loading is
Expressed in pounds per square foot and is obtained by dividing total weight of an airplane in pounds by the wing area in square feet
Takeoff or landing speed is
General a function of the stall speed or a minimum flying speed
What are the threefold effect on takeoff performance if you have increased gross weight
Higher lift-off speed, greater mass to accelerate, increased retarding force “drag and ground friction”
