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Aircraft Mechanics
Reference Area in Take Off and Landing Formulas
The Reference Area is arbitrarily an area that is characteristic of the object being considered. For an aircraft wing, the wing’s planform area is called the reference wing area or simply wing area. And is denoted by S. Reference Area is usually measured using the Square Meter for Area. Note that the value of Reference Area is always positive.
Take Off and Landing formulas that make use of Reference Area
f
x
Drag during ground effect
Go
f
x
Liftoff velocity for given weight
Go
f
x
Stall velocity for given weight
Go
f
x
Maximum Lift coefficient for given stall velocity
Go
f
x
Maximum Lift coefficient for given liftoff velocity
Go
f
x
Liftoff distance
Go
f
x
Thrust for given liftoff distance
Go
f
x
Landing ground roll distance
Go
f
x
Touchdown velocity
Go
FAQ
What is the Reference Area?
The Reference Area is arbitrarily an area that is characteristic of the object being considered. For an aircraft wing, the wing’s planform area is called the reference wing area or simply wing area. Reference Area is usually measured using the Square Meter for Area. Note that the value of Reference Area is always positive.
Can the Reference Area be negative?
No, the Reference Area, measured in Area cannot be negative.
What unit is used to measure Reference Area?
Reference Area is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Reference Area can be measured.
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