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Wing
Area Answers
- Using the picture
and dimensions provided, calculate the area of the Wright Brothers wing
section and the F-18 Blue Angels wing. Record your answers in the data
table. See table shown below.
- Open the FoilSim
program. Set your airspeed =100, altitude =2,500, angle=5.0, thickness
=12.5, and camber=0. Change the area by plugging in the values you calculated
for each wing area and record the resulting lift force in your data
table. See table shown below.
- Graph your results
with the calculated values for area on the x-axis and the lift force
on the y-axis. (Be sure to label your graph.) The
graph will be a straight line through the origin.
- What is the relationship
suggested by this graph? This indicates
a directly proportional relationship.
- Find and record
the slope of your graph. The calculated
slope is approximately 14.
- Using the calculated
slope, write the equation for the line (on your graph) using the form
L = Constant * A, where L is the lift, constant is the slope,
and A is the area. L=14A
- Using your equation,
calculate the lift produced by the Boeing 747 and Concorde (area
given in table). Record your answers in the table. See
table shown below.
- Using your equation,
calculate the area of the Space Shuttle compound wing (lift given
in table). Record your answer in the table. See
table shown below.
- Design a trapezoid
wing that will generate a lift force of 121,000 lbs. Your wing span
(distance from wing tip to wing tip) may not exceed 95 feet. Answers
will vary. The design wing should not exceed an area of 8643 sq. ft.
FoilSim will accept only whole values for wing area and will round the
answer.
Answers
will vary. The design wing should not exceed an area of 8643 sq. ft.
FoilSim will accept only whole values for wing area and will round
the answer.
Wing
|
Calculated
Area
|
Lift
|
Wright Brothers
Rectangle
|
240
square feet
|
3491
pounds
|
F-18 (Blue
Angels) Trapezoid
|
142.5
square feet
|
2080
pounds
|
Space Shuttle
Compound
|
16,429
square feet
|
230,000 pounds
|
Boeing 747
Trapezoid
|
2750 square
feet
|
38,500
pounds
|
Concorde Triangle
|
1820 square
feet
|
25,480
pounds
|
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