PPRuNe Forums - View Single Post - Which one to believe; which version of lift is taught for the ATPL theory exams?
Old 30th Dec 2009, 11:38
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PilotJames
 
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Which one to believe; which version of lift is taught for the ATPL theory exams?

Heya guys I was wondering,
We have the bernoulli model of life with the equal transit times meaning the air has to speed up over the upper surface in order to "catch up" with the air under the wing at the trailing edge. This then creates a low pressure on the upper surface of the wing thus the wing creates lift.

But we also have the stick and rudder version;
The wing is an air deflector and for every action there is an equal reaction, therefore as the air is kicked downwars it kicks itself up.

Is there any other versions?
Which one is most likely to be correct?
WHICH ONE IS TAUGHT FOR THE ATPL GROUND SCHOOL THEORY EXAMS??
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