
FoilSim
Lift Relationships
Activity


If so instructed by your teacher, print out a worksheet
page for these problems
Using FoilSim,
set the following parameters:
Airspeed: 100 mph
Altitude: 0 ft
Angle: 0.0 degrees
Thickness: 12.5%
Camber: 0.0
Area: 1 sq ft
1. What is the value of lift with these parameters?
2. Determine the Lift value for each of the prescribed Angle
levels, while keeping the other values the same.
Angle

Lift (lb.)

0 degrees

__________________

2 degrees

__________________

4 degrees

__________________

8 degrees

__________________

16 degrees

___________________

3. Graph the values for Angle and Lift. (Place the
Angle on the yaxis and the Lift on the xaxis.)
4. What is the relationship between the Angle and the Lift?
5. Write an equation that will sum up this relationship.
6. Using FoilSim, and keeping the angle set at 4 degrees,
determine the Lift values for the following Airspeeds.
Airspeed

Lift (lb.)

25 mph

_____________________

50 mph

_____________________

100 mph

_____________________

200 mph

_____________________

7. On another graph, plot the values for Airspeed and the
corresponding Lift levels.
8. What is the relationship between the Airspeed and the Lift?
9. Write an equation that will sum up this relationship.
Extra Activity:
a. Using FoilSim, manipulate the values for all the different
variables until you get the highest lift value possible on this
particular simulation.
b. What were your values for the different variables (be sure to
include labels)?
c. What do you think will be the possible result if this lift was
applied to a real plane?
