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RC India
General Topics => Chatter Zone => Topic started by: anwar on August 21, 2013, 01:39:32 PM
Title:
New efficient helicopter design
Post by:
anwar
on
August 21, 2013, 01:39:32 PM
http://interestingengineering.com/new-principle-of-helicopter-vehicle-invented-in-belgium/
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