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Ducted Fan Quad Copter

by InlineTwin, published

Ducted Fan Quad Copter by InlineTwin Dec 5, 2012

Description

This project is specific to an experiment I conducted on the ducted fans. It is not an attempt to improve on existing designs. Though I thought I would share the basic components as an opportunity for others to experiment with the quad copter.

Recent Comments

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Good points, I was bringing up the flight times more from an efficiency point of view. Much better to swing a big prop slowly than a tiny prop quickly. As for control, with a lower momentum held in a smaller prop a greater throttle differential would be required for changes in yaw (as compared to a large slow prop setup). greater throttle differential is restricted by ultimate thrust delivery when looking at stability across the X & Y axis, and the longer spool up and down times. Food for thought :D.

i want a quad real-RC-turbine-copter :)

Would you be willing to post a video of it spinning up? I would love to see how it behaves regardless if it flies or not.

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yzorg on Nov 22, 2013 said:

i want a quad real-RC-turbine-copter :)

carlandj on Feb 17, 2013 said:

Would you be willing to post a video of it spinning up? I would love to see how it behaves regardless if it flies or not.

Project on Dec 16, 2012 said:

Always wanted to do an EDF quad but I'm guessing the flight time will be awful. you'd probably want to use outrunners of a lower Kv with high pitch blades and lots of em. if the throttle range is too big it'll make corrections difficult so it will be a bit unstable.

CJ

InlineTwin on Dec 19, 2012 said:

There are no restorative moments on a vehicle of this type. It is by definition unstable and requires stability augmentation. An exponential adjustment on the transmitter may correct for non linear responses of control axis. The flight time is simply related to the battery capacity and current draw. Current draw is dictated by prop loading, which changes during flight. Flight times will vary*.

jrd210 on Dec 14, 2012 said:

ANy chance you could do an "Instructable" on the whole project with parts list etc and what controller you are using??  Looks great btw, like to use one at our Hackerspace.

ssd on Dec 13, 2012 said:

I don't see here the part for the body.
Are you using one of the parts from the parent part?
 

InlineTwin on Dec 13, 2012 said:

Yes there are two common parts. The Body and the Canopy.

Vegetoast on Dec 8, 2012 said:

where do you get blades for it. I notice all yours are ccw.
Looks the goods

notloc on Dec 8, 2012 said:

 If all your fans rotate the same direction, you'll need to tilt two of them or you'll have no yaw control. (I've built a few this way myself.)

yzorg on Dec 5, 2012 said:

looks badass.
is it louder or quieter than ductless fans?
i suggest you print that in clear pla.. it will reflect the enviroment and stealthcloak the copter a bit.

mschrock on Dec 16, 2012 said:

I would guess it would be much louder than a standard quad.

whfbee on Dec 5, 2012 said:

What size motor/blades does it take

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