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Old April 25th 08, 09:16 PM posted to rec.aviation.piloting
Robert M. Gary
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Posts: 2,767
Default Isn't lift part of drag?

On Apr 25, 12:47*pm, "Peter Dohm" wrote:

There are a lot of trade offs,


Not always. There is no trade off between a model-T and a modern car.
Technology innovation allows for increased efficiency that does not
necessarily require any trade-off other than the RND time required to
develop.

-Robert