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Sep 27, 2013, 05:20 AM
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Build Log

EDF 64 - 70mm KFm4 Foam jets


Visit my thread here.

There's a lot of fun to be had at little fuss or expense. You can buy these EDF units, assembled ready, for 15 to 20. This one at 70mm claims to produce 1350gms of thrust at 450watts.

I've used the smallest one, 220watts in a Messerschmitt 163 Komet effort.

Here's a video:
(6 min 21 sec)


and here's how it started:
Last edited by nickchud; Dec 14, 2013 at 11:41 AM.
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Sep 27, 2013, 05:40 AM
What could possibly go wrong?
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Now I'm starting on a Vampire version of the same idea.

If you've got a similar idea, ie just foam, something stiff for a spar, something simple for airfoils and wing panels, please post your pictures and videos here.

I'm imagining things like: A Saab Gripen, a Hawker Hunter, a BD-5, a Vulcan.

All ideas will be welcome!

Sep 27, 2013, 11:52 AM
Watt Waster
Tsavah's Avatar

EDF and KFm4 Foam Jets Build Log


Sounds like some interesting ideas and projects. I have yet to do any EDF projects and I really like simple. Subscribed.
Last edited by Tsavah; Sep 27, 2013 at 11:53 AM. Reason: spelling
Sep 29, 2013, 04:05 AM
What could possibly go wrong?
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Starting on the Vampire


First steps.
And progress.
Last edited by nickchud; Oct 04, 2013 at 03:47 AM.
Oct 06, 2013, 01:41 PM
Up-Out-&-Gone
demondriver's Avatar
Nick that's one mean-Cool looking EDF Vampire!
Latest blog entry: RC 737 Max 7 Maiden flight!
Oct 06, 2013, 02:16 PM
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Maiden flight was not good. The CoG calculator said 80mm from the leading edge, after repairing the plane and moving to 65mm, it works fine. today is the first day of learning to fly this little beauty. This is going to be fun!

(9 min 34 sec)
Oct 08, 2013, 08:17 AM
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How about an English Electric Lightening:


or a Saab Gripen
Oct 09, 2013, 02:07 AM
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Go to this thread in Scratchbuilt EDFs
Last edited by nickchud; Oct 09, 2013 at 06:07 AM.


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