Thrust, Stability, Center of Gravity Flashcards
What happens when thrust exceeds drag? Less than drag?
The airplane accelerates / speed decreases
In what direction is thrust vector?
Parallel to the longitudinal axis of the airplane
What makes up the weight of the airplane?
Airplane, fuel, passengers, cargo
What is the center of gravity?
The point where the airplane would balance
How is stability defined?
The quality of an airplane to return to original flight attitude when disturbed by an outside force
In most airplanes, where is the center of gravity located in relation to the center of lift?
Slightly ahead
What creates a downforce on the tail to balance the inherit nose heaviness of the airplane?
Prop wash, movement of air off the tops of the wings, and relative wind
What is dihedral function and how is it achieved?
The upward angle of the wing measured from the fuselage to the wingtip, helps maintain roll stability
What is a result of forgetting to switch fuel tanks?
Decreased roll stability
Which axis is most affected by improperly loading an aircraft?
Axis of pitch
What is the result of a CG behind the allowable CG area? During a stall?
Decrease pitch stability, tail stability / during a stall, the aircraft would remain in a nose up attitude
What is the result of a CG in front of the allowable CG area? During a landing?
Increased pitch stability, more elevator pressure needed / Might not be enough elevator pressure to flare during landing
What are the consequences of overloading an airplane?
Higher stall speed, Longer takeoff distance, lower rate of climb, longer landing roll
