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Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

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Old 12-24-2010, 12:36 AM   #1
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Default A low power ducted fan

Compared to a light weight park flyer most ducted fans fly fast & use a lot of power to do it so I asked myself a question. Is it possible to build a lightweight park flyer with a fan?
The emphasis would be a shrouded fan rather than ducting to emulate a turbo jet. So a bit of experimenting.
First the fan. 7 blade 76mm diam fixed directly to the bell of a 2812 1600kV out runner.
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With a simple shroud on a test stand.
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On a 3s LiPo it produces 6oz (170g) thrust drawing 13A which should fly a 40" span 12oz plane ok.
This was the sort of thing I had in mind.
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Keeping weight to a minimum a test fan shroud made of a paper/depron/paper sandwich. It weighs 0.14oz (4g)
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Of course this may not work at all!

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