Weight And Balance Flashcards
IMC
Instrument Meteorological Conditions
VMC
Visual Meteorological Conditions
What causes an airplane to stall?
Excessive angle of attack
What is a spin?
A controlled (recoverable) or uncontrolled (possibly unrecoverable) maneuver in which the airplane or glider descends in a helical path while flying at an angle of attack greater than the critical angle of attack
What causes a spin?
Exceeding the critical angle of attack while applying excessive or insufficient rudder, and to a lesser extent, aileron.
When are spins most likely to occur?
A. Engine failure on takeoff during climb out
B. Crossed-control turn from base to final (Slipping or skidding turn)
C. Engine failure on approach to landing
D. Go-around with full nose-up trim
E. Go-around with improper flap retraction
What procedure should be used to recover from an inadvertent spin?
P.A.R.E
Power- reduce to idle
Ailerons- position to neutral
Rudder- apply full opposite against rotation
Elevator- apply positive, forward of neutral, movement to break stall.
Once spin rotation stops, neutralize the rudder and begin applying back pressure to return to level flight
Empty weight
The weight of the airframe, engines, all permanently installed equipment, and unusable fuel
Gross weight
The maximum allowable weight of both the airplane and its contents.
Useful load
The weight of the pilot, copilot, passengers, baggage, usable fuel and drainable oil.
Arm
The horizontal distance in inches from the reference datum line to the center of gravity of the item.
Moment
The product of the weight of an item multiplied by its arm. Moments are expressed in pound-inches.
Center of gravity
The point about which an aircraft would balance if it were possible to suspend it at that point. Expressed in inches from datum.
Datum
An imaginary vertical plane or line from which all measurements of arm are taken. Established by the manufacturer.
