EDF Project for FAI 40 4T - RC Groups
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Jul 16, 2002, 08:35 PM
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FlyingW's Avatar

EDF Project for FAI 40 4T


I want to build and fly a ducted fan electric jet. I also want to use my FAI 40 4T. I am advised that it could turn a 4" fan. Who, what, where, etc. can I find out more about the possibilities?

How can I tweak Electricalc to estimate a 4" fan?

Thanks for any ideas.
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Jul 16, 2002, 09:50 PM
shut up & fly
hoser's Avatar
I tried a 6T on a 5" fan and it barely worked, 4.5 to 5 pounds of thrust and 17,000 rpm (low end for the HW-750) on 20 cells and 50+A

SO, I always thought it should work well on the HW-730, but you will need the adapter rework for the shaft since it's not 5mm.

now the 4T is a bit hotter but should work
Last edited by hoser; Jul 16, 2002 at 09:58 PM.
Jul 16, 2002, 11:24 PM
EDF all the way!
bruff's Avatar

Astro FAI


I flew an EJF F-86 using a WeMoTec HW-730 fan and a Astro 25 FAI on 16 cells. Flew well. the 40 should do great.
Bob Ruff
Jul 17, 2002, 03:14 AM
Registered User
Gordon's Avatar

Re: Astro FAI


Quote:
Originally posted by bruff
I flew an EJF F-86 using a WeMoTec HW-730 fan and a Astro 25 FAI on 16 cells.
What was the current draw Bob?

Gordon