
Wing Area Effects
Answers


 Go to the Foilsim
Software Program and set initial conditions as follows:
Airspeed = 100 km/h, Altitude = 5000 m, Angle = 1 deg , Thickness =
12.5, Camber = 12.5, Area = 10 sq. m.
What is the Lift?
4757 Newtons
 Change the area
as shown in the following table and record the associated lift for each
area to complete the table.
Wing
Area(sq. m)

Lift(Newtons)

10

4,757

20

9,513

30

14,270

40

19,030

50

23,780

60

28,540

80

38,050

TABLE 1
 Construct a graph
of Wing Area's effect on Lift with an Independent Variable (X) of Wing
Area and a Dependent Variable (Y) of Lift. Label each axis correctly
to include units. Print out graph from
FoilSim Program.
 Interpolate the
lift for a wing area of 70 sq. m. What is the lift? 33,299
Newtons
 Extrapolate the
lift for a wing area of 100 sq. m. What is the lift? 47,575
Newtons
 What is the shape
of the curve formed by this relationship? A
line
 Write the equation
for this relationship! Y = 475.75 X where
Y = lift and X = area
 Based on the relationship
between lift and area of a wing, how would you increase the lift on
a wing? Increase the Area of the Wing!!!
