EDF Afterburner Test #1

An Electric ducted fan with an afterburner attached. Its called a motorjet or thermojet. It does add extra thrust, but its more about making FIRE than anything else!

Category:

Science & Technology

Tags:

• EDF
• afterburner
• Jet
• Afterburner

[skodasupercar]

To answer so questions

Yes you can use an 50 or 70 mm edf. I used a cheep 70 mm edf, but this was more about fire than thrust.

As for regulating gas I was just pressing the nozzle in on the gas can.

The fuel goes in after the fan, just behind the flame holder.

Google for thermojet or motorjet to get an idea of what is inside.

Lewis

[xmind22]

does this provide enough thrust to be used in a RC plane model?

[skodasupercar]

Yes, BUT the rig itself is a little too heavy to be honest.

I plan to improve on the design with a few tweeks, make the ducting MUCH better then put the rig into either a little model jet dragster, or most likely into an EDF 'jet' boat that i made a while back.

[skodasupercar]

Thanks for the comments.

It is made from a 12 volt electric ducted fan (a cheep one) running on a 400 sized motor. The body of the combustion chamber is made from an old 500ml paint can and cut at the end with a dremel to make a nozle.

The fuel is gas. you can use butane lighter gas or hair spray or my personaly favorite, cheep spray deoderant. It is piped into the conbustion chamber just atfer the fan. there is also a flame holder installed between the fan and fuel input.

[skodasupercar]

the flame holder is a disk of metal with holes cut in it. It allows the air past without too much resitriction but provides turbulance to ensure that the fuel can ignite and burn.

I tried to run it on liquid fuel (petrol) but vapourising the fuel is really hard. If you just pour it in, it won't burn properly and will end up spewing out of the end. I shoud know!

It produced a fair amount of thrust but was more for making fire than anything productive ;)

[1950dodgefan]

On this when u use afterburner on a real engine do u have to nut gas I'n it or will it use the gas not burned up

[BCQD4]

@skodasupercar How much thrust would you say this gives off

[rockonmyfriend]

holy shit!!! lol

[hallsf]

Sweet and dirty motorjet! --SFH

[9unuunu]

heloo! i made the same thing

can you show me a video from the inside, ore some pics??

thanks!

[appa609]

insulte the duct well, as foam melts very easily.

[mgrande11]

That should be interesting in a foam edf

[pyromaniac933]

goes the fuel in before or after the van?