Question

The weight of the North American P-51 Mustang airplane is 10,100 lb and its wing platform area is 233 ft2 . Calculate the wing loading (airplane weight per wing area) in both English engineering and SI units. Also, express the wing loading in terms of the nonconsistent (but commonly used) unit kgf/m2 (kilogram-force per square meter).

Answer 1

Answer

given,

weight of airplane,W = 10,100 lb

Wing area,A = 233 ft²

now,

Wing Loading Calculation in English engineering

        = $\dfrac{W}{A}$

        = $\dfrac{10,100}{233}$

        = 43.35 lb/ft²

Wing Loading in SI unit

        = $43.35\times \dfrac{4.448\ N}{1\ lb}\times (\dfrac{1\ ft}{0.3048})^2$

        = $2075.51\ N/m^2$

Wing loading in kgf/m²

      = $\dfrac{2075.51}{9.81}$

      = 211.57 kgf/m²