Quote:
Originally Posted by RudolfXC
The vertical section on the end of the wing is to give extra lift by preventing the the vacuum created above the wing producing lift leaking over the end of the wing.
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Very true, make a paper airplane and add wing tips/fins. You will immediately notice the extra lift. On the subject of paper aircraft, I saw an rc paper plane conversion kit online. Build a paper plane (a good one like wr paper plane or sky king), put rc bits in, then dress it up as a car with wheels etc. Like the trucks in the vid just more plane like
