Angle of Attack Flashcards
What is the definition of parasite drag and what two components might it be divided in to?
Parasite drag is the drag of all those parts of the airplane which do not contribute to lift.
It can be devided into form drag and skin friction
What is induced drag?
Drag created by the parts of an airplane that are active in producing lift. It is a direct consequence of producing lift.
Why does going faster than the POH glide speed not make you go farther?
Best glid is at the point of best lift to drag ratio. Going faster than this will increase parasite drag and make you loose lift and land/crash faster
If you pull up/go slower on a forced approach than the published POH glide speed, why do you fall even shorter than if you go faster?
Because the slower you go the more induced drag. You really want to hit your glide speed, which is te best drag to lift ratio
If you have say a 10kt headwind during a forced approach, how should you adjust?
Add 5 to 10 kts of airspeed (10 at most, closer to 5), as the published glide speed is for still air only.
Do the opposite if you have a tail wind
What does the center of pressure do when airspeed is increased vs decreased?
With a decrease in airspeed, the CoP moves forward toward the leading edge of the wing and the opposite is true for an increase in speed.
What are the three main conditions that contribute to Mach Buffet?
High Altitudes
Heavy weight
G Loading
Because these all require or cause an increase in AoA
