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04-04-2003 | 03:36 AM

#7

Couch-pilot

Joined: Nov 2002

Posts: 225

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From: Hamilton, ON, CANADA

Area Rule?????

Everything I've read about the math gives an outlet of about 90% of the fans swept area.
This figure from both the books:

"Ducted fans for model jets" by David James,
And

" R/C Ducted fans" by Frank Fanelli.

Great books...spend the money!

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