The Cessna $172$ Hawk XP $($shown to

the right$)$ may be assumed to have a

constant cross$-$section represented by

a NACA $2412$ airfoil and is operating

at standard sea level conditions.

Other specifications include:

Wing area $=250f{t}^2$

Tip$-$to$-$tip wing span $=50ft$

$,$ Speed $=280f\frac{t}{sec}$

Span efficiency factor $=0\mathrm{.}9$

Reynolds number $=9{10}^6$

Pilot's name $=$ Fred

Angle of attack $=6$

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