Please explain in detail. Is it because engines are now much more powerful than they were 10-20 years ago? Also, I saw on TV once that helicopter blades produce a vortex directly behind the blade, with an axis of rotation that is parallel to the blade. This cause the next blade to be less efficient as it passed through the vortex instead of undisturbed air. This seemed to show that it was better to have fewer blades instead of more. That way the vortex had more time to dissipate. Wouldn't this happen with a propeller, as well? What are some other advantages and disadvantages of having more blades instead less, etc.?
2007-09-15
07:13:16
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9 answers
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asked by
L Dawg
3
in
Aircraft