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12-24-2010, 12:36 AM
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A low power ducted 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. With a simple shroud on a test stand. 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. Keeping weight to a minimum a test fan shroud made of a paper/depron/paper sandwich. It weighs 0.14oz (4g) Of course this may not work at all! |
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