Aeronautical Quiz

Aeronautical Quiz ................

They say it is common sense but here is a Clue: Just remember that a helicopter's blade (in cross-section) is shaped like an airplane’s wing, and both catch air giving lift..now answer the question.... This should be an easy quiz for those who have even a modicum of knowledge about aircraft. However, the answer may surprise you.

The Question:

"What is the primary advantage of rotary winged aircraft    over fixed-winged aircraft?"

 

Thanks Ivan