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FoilSim
Characteristics of Lift and Wing
Area
Activity


If so instructed by your teacher, print out a worksheet
page for these problems.
 Use
FoilSim
to answer the following questions :
 You are flying a 10,000 pound airplane( this
includes personnel and cargo) at an altitude of 2,000 feet. The
wings have an angle of attack of 5 degrees, a camber of 8.75%, a
thickness of 15%, and an area of 100 square feet. What airspeed
should you attain to have to maintain your altitude?
 Your plane drops 1,500 pounds of supplies to relief
workers. Enter your new mass.What angle of attack will maintain
your altitude of 2,000 feet?
 You make another drop of supplies, this time 750 pounds of
food. To what value should you change your wing area to
maintain your altitude of 2,000 feet?
 The wings of the airplane you are flying are shaped like the
right triangle below.
 The total area for both of your wings is your
answer in 1.3 above. Knowing the area of a triangle = 1/2 base x
height. What is the length of the base if the height of the
wing is 5 feet?
 Suppose the total area is 120 square feet, and the base of
1 wing is 20 feet. What is the height?
 Set these initial conditions:
Airspeed: 100 mph
Altitude: 20,000 feet
Angle: 1.5 degrees
Thickness: 5%
Camber: 3.75%
Select 10 different values of Area between 200
and 700 square feet and record the corresponding values of
Lift.
Area (sq. ft.)

Lift (lb.)

200

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700

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 Graph Lift vs. Area with the values you
obtained.
 What did you notice about the line connecting the points
you graphed?
 From your graph determine the amount of lift you would
generate if you had an area of 550 square feet. Check your
answer by entering 550 square feet for the area and observing
the amount of lift generated.

Related Pages:
Standards
Worksheet
Lesson Index
Aerodynamics Index


