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Area Under A Curve Answers

Answers will vary. Actual answers will depend upon the altitudes chosen by the students. With all students' answers, a trend should emerge.

Students should note that the basic shape seems to be retained in the Airfoil Plotter View Panel. However, the pressure values shown along the y-axis change as the altitude is altered. Therefore, if the five views are sketched on the same piece of graph paper, each basic shape should become "thinner." The resulting area of the basic shape should decrease as the altitude is increased, i.e., the pressure decreases as the altitude increases. As the altitude increases, the density of the air decreases and the lift on the airfoil decreases. This explains why an aircraft has a flight "ceiling", a maximum altitude at which it can fly. Above the ceiling, the lift is too small to overcome the weight.


Related Pages:
Standards
Activity
Worksheet
Lesson Index
Aerodynamics Index

 

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Editor: Tom Benson
NASA Official: Tom Benson
Last Updated: Thu, Jun 12 04:47:12 PM EDT 2014

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