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General control line discussion => Open Forum => Topic started by: Motorman on February 03, 2015, 12:25:33 PM

Title: Ducted Fan
Post by: Motorman on February 03, 2015, 12:25:33 PM
Has anyone done an electric ducted fan stunt ship, would it work?


MM
Title: Re: Ducted Fan
Post by: Derek Barry on February 03, 2015, 12:32:29 PM
I would imagine that it would need to be a twin engine so you could blow the air over the control surfaces.

Derek
Title: Re: Ducted Fan
Post by: Tim Wescott on February 03, 2015, 02:07:26 PM
Speed regulation would probably suck, perhaps even if you had an Igor timer set to "most aggressive".

But, wouldn't an A-10 Warthog just be hell on wheels?
Title: Re: Ducted Fan
Post by: RandySmith on February 03, 2015, 02:21:09 PM
Quote from: Tim Wescott on February 03, 2015, 02:07:26 PM
Speed regulation would probably suck, perhaps even if you had an Igor timer set to "most aggressive".

But, wouldn't an A-10 Warthog just be hell on wheels?

Only if it has the rotational "mayhem" device in the nose of it !!

Randy
Title: Re: Ducted Fan
Post by: Will Davis on February 03, 2015, 02:47:49 PM
Just don't tell Banjok it cannot be done ......
Title: Re: Ducted Fan
Post by: Trostle on February 03, 2015, 02:54:14 PM
Quote from: Will Davis on February 03, 2015, 02:47:49 PM
Just don't tell Banjok it cannot be done ......

Well, at least it has been thought of before.  From the mind of Bill Netzeband, published in Model Airplane News, February 1957.

Keitih
Title: Re: Ducted Fan
Post by: Luiz Carlos Franco on February 03, 2015, 05:22:12 PM

Follow the link below to FLYnG LINES Sept-Dec 2012 Favorite Plane Gallery for something that has been done.

http://flyinglines.org/planes.12.12.html

Title: Re: Ducted Fan
Post by: Tim Wescott on February 03, 2015, 05:38:18 PM
Luiz: this one?

(http://flyinglines.org/darkow.jet.jpg)
Title: Re: Ducted Fan
Post by: Sean McEntee on February 03, 2015, 10:34:57 PM
Quote from: RandySmith on February 03, 2015, 02:21:09 PM
Only if it has the rotational "mayhem" device in the nose of it !!

Randy

   Randy I respectfully disagree.  I've seen firsthand how the device you mentioned can quickly and abruptly end any "mayhem" :D
Title: Re: Ducted Fan
Post by: Luiz Carlos Franco on February 04, 2015, 12:50:49 PM
Quote from: Tim Wescott on February 03, 2015, 05:38:18 PM
Luiz: this one?

Yes!! Hope the designer chimes in with more details.

(http://flyinglines.org/darkow.jet.jpg)
Title: Re: Ducted Fan
Post by: Jared Hays on February 04, 2015, 05:34:11 PM
I fly R/C electric ducted fans and I would never try to make a C/L stunt ship rely on an electric ducted fan for its power.  If you just want to fly circles or maybe a big loop sure.  But you try doing a square eight or something...Your gonna be picking up the pieces off the tarmac.  You lose energy very quickly with a ducted fan and they really don't put out much for lbs of thrust.  You would be having to run like a 6-8s lipo on a 90mm fan to get any where close to having the power to do maneuvers and if you did have enough power you would be doing them at 100mph lol.