Thread: Defying gravity, the flying future.
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Old 04-11-2018, 05:42 PM   #3 (permalink)
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Uhhnnn... like guns with longer tube have more power ?

But this first air taxi in the video, even with the total propellers together, don't look like have a huge area. It still puzzles me...

Quote:
Originally Posted by jeongyun View Post
For one thing, ducted or shrouded fans are a lot more efficient than open ones.

Ducted fan - Wikipedia
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