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Old Jun 26, 2001, 03:18 AM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Län, Ljungby
Joined Jan 2001
4,770 Posts
Mf 480 ducting

Hi

I´m planing to build a fast EDF with the MF480, and need some help with inlet and outlet area for the MF480.

Thera are probably many posts with this info...but I could´t find any of them...

/Henke

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Old Jun 26, 2001, 10:58 AM
Registered User
Canada
Joined Nov 2000
6,963 Posts
Fast with a Minifan means 450watts input power.. suggest researching the Lehner Bl motors.. they can do this reliably..
With that power using the Minifan instruction/recomendations will do the job.
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Old Jun 26, 2001, 01:48 PM
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Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,165 Posts

Well there are many parameters to consider (wing area, weight & wing loading, wing profile & ducting etc) but as far as the ducting is concerned I would keep the intake diam close to the fan diam (=69 mm), for fast jets you can reduce it a slight bit. As far as the outlet is concerned for the MF480 you don't want to go below 53 mm diam.

Have a look at the short discussion on
http://www.wemotec.com/englisch/basics/index.html

or buy like I did a copy of D. Juras' book.

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Old Jun 27, 2001, 01:25 AM
310mph Kolibri T25 Swist
henke's Avatar
Sverige, Kronobergs Län, Ljungby
Joined Jan 2001
4,770 Posts
Thanks for your replies!

I was thinking fo a Plenum like plane, using my new Hacker B40L (600W). (the starfighter project is resting fot the moment)

/Henke
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