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EDF with afterburner?
ConcreteTurtle
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#1

19-03-2013, 10:06 PM
A really good episode of flite test:

http://youtu.be/yKuq8T7KMa0

Don't try this at home of course, but it does sound fantastic!
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secant0give
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#2

19-03-2013, 10:38 PM

Hmmm I was thinking along these lines only the other day.
If it's carefully designed it should be able to provide a lot more than 15% extra thrust

The Russians made an early jet fighter that used a piston engine to drive the compressor and a combustion chamber like a conventional jet engine. The idea has a few advantages over the traditional gas turbine design, especially in model size applications. properly designed it should over double the thrust but you wouldn't use it as an afterburner it would have to have a proper combustion chamber and nozzle and would have to burn fuel all the time.
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smuzz
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#3

19-03-2013, 10:55 PM
(19-03-2013, 10:06 PM)ConcreteTurtle Wrote:  A really good episode of flite test:

Yes indeed mate - the best episode of Flitetest I've ever seen Smile
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ConcreteTurtle
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#4

30-03-2013, 10:40 PM
(19-03-2013, 10:38 PM)secant0give Wrote:  The Russians made an early jet fighter that used a piston engine to drive the compressor and a combustion chamber like a conventional jet engine. The idea has a few advantages over the traditional gas turbine design, especially in model size applications. properly designed it should over double the thrust but you wouldn't use it as an afterburner it would have to have a proper combustion chamber and nozzle and would have to burn fuel all the time.

Hey Jason,

Yeah I think the concept is a thermojet, pretty inefficient but when you want a boost in combat it was a good stopgap.

I suppose the limitations we have are the materials, pressure and temperature are not good friends of EPO.

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brotherblonde
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#5

03-04-2013, 01:03 PM
Sounds and looks awesome.

Here is the ever-enthusiastic Alishanmao with a beautiful sounding 90mm EDF.

http://www.youtube.com/watch?v=BCDNNELiskg
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smuzz
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#6

03-04-2013, 02:37 PM
He certainly had his hands full! I was pleased to hear him saying they were working on retract selection because a beautiful model like that cries out for them.
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samste
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#7

03-04-2013, 03:33 PM
Andrew, You Inspiring me to finish off my Viper Jet Wink

Steve Smile
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brotherblonde
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#8

03-04-2013, 06:41 PM
Yep. Smile
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#9

03-04-2013, 09:50 PM
Just to get this thread back on track Smile

Here's an interesting link I found discussing various experiments with motor Jets.

It's also interesting to note that some people are using EDF set ups to supercharge internal combustion engines.
“The knack of flying is learning how to throw your machine at the ground and miss.”

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gbanger
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#10

03-04-2013, 09:54 PM
OK Jason you have my attention... I'm interested ... what Link????
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(This post was last modified: 03-04-2013, 09:55 PM by gbanger.)
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secant0give
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#11

03-04-2013, 10:05 PM
http://www.angelfire.com/art/jetengine/

Sorry Gazz I forgot the link earlier here it is
“The knack of flying is learning how to throw your machine at the ground and miss.”

"When once you have tasted flight, you will forever walk the earth with your thoughts turned skyward, for there you have been, and there you will always long to return."  ~Leonardo Da Vinci
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