Thread Tools
Sep 27, 2001, 08:39 PM
high-speed freak
opualuan's Avatar

micro edf


anyone know of any micro size electric ducted fan units, for really small & light jet models? I'm thinking of scratch-building something really small...
Sign up now
to remove ads between posts
Sep 28, 2001, 07:57 AM
Registered User
Doc Watson's Avatar
Try a quick search, I started a thread called 'EDF under 50g, it can be done...' (or something like that). I discussed various options for building a micro fan and also included some calculations.

I will try and find it and post it later......

Doc
Sep 28, 2001, 08:00 AM
Registered User
Doc Watson's Avatar
here it is......

https://www.rcgroups.com/ezone/showt...t=micro+ducted

enjoy, it sparked loads of interest..

Doc
Sep 28, 2001, 11:25 AM
Registered User
Hmm...there is the new GWS unit (50 mm diameter)...Balsa Products will carry it (don't think they have it yet.)

Otherwise you can "roll your own"....that's what I'm doing right now...just don't have any time right now.

Will keep you posted (if I ever finish it )


Bernie
Sep 30, 2001, 11:58 AM
Boffin
rpage53's Avatar
Quote:
Originally posted by Doc Watson
Try a quick search, I started a thread called 'EDF under 50g, it can be done...'
Was it ever done? I got the impression it turned out undoable.

Rick.
Sep 30, 2001, 01:47 PM
high-speed freak
opualuan's Avatar
well, gws just came out with a 1oz ducted fan which puts out 2.5ozs of thrust on 7 cells...

so, 1oz for a 50mah nicad pack or 110mah nimh (pushing the current, i know...) and 1 oz for the fan... say 1/2 oz for the airframe, 1/2 oz for electronics... so ~90 grams auw for a mini edf jet with the gws edf...


sounds pretty good to me... it ain't 50 grams, but 90 grams is pretty sweet...

I saw the astro firefly at the electra fly-in this weekend... looks like it would make a pretty crazy micro-size edf motor with the right blade... I think i'll try it in motocalc...
Sep 30, 2001, 02:25 PM
Registered User
Doc Watson's Avatar

EDF Under 50g? it can be done......


No I havent built it (yet).......

I'm a bit busy with my 3 fan VTOL X32b at the moment. It can be done I cannot remember anywhere in the thread that I said it couldn't.

I started the thread in the hope that someone would 'have a go' as I said earlier all my free time is taken up with the X32b....

Maybe next year........

Doc
Sep 30, 2001, 05:17 PM
high-speed freak
opualuan's Avatar
you have any pictures of your x32b model progress? are there any existing vtol jet rc craft even available??
Sep 30, 2001, 05:23 PM
Registered User
Doc Watson's Avatar
I've seen a VTOL IC harrier which can nearly takeoff vertically, but it has 2 nozzles. Other than that the only scale'ish electric I've heard off is a harrier but its cells are not flown and the model has an umbilical to provide power.

Doc


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Great Planes F-86 Micro EDF - Tx-R TSinke Aircraft - Electric - Airplanes (FS/W) 0 Sep 03, 2016 04:57 PM
Wanted 30 MM EDF unit for micro F-86 by Art Tech Mephalis2009 Aircraft - Electric - Micro & Indoor Airplanes (FS/W) 2 Sep 01, 2016 03:36 PM
Wanted 30 MM EDF unit for Art Tech Micro F-86 Mephalis2009 Aircraft - Electric - Jets (FS/W) 1 Aug 25, 2016 05:13 PM
Discussion Showdown! Micro EDF Sabre Vs. Micro EDF Mig NitroCharged Micro EDF Jets and Power Systems 132 Dec 16, 2012 11:25 PM