Motor Jet Information

[NanoSoft]

I was wondering if any one out there has any information realting to motor jets. I have a couple big electtric motors big fan blades and lots of metal and was hoping someone could supply me with some basic information realting to this subject.

Thank you for any help.

Nanosoft

[Bruno Ogorelec]

Our man Shane the oil well fire-fighter (who hasn't posted in a loooong while) has built at least one motorjet, possibly more. Look him up in the forum archives under the 'rescyou' nickname.

His motorjet website is http://www.rescyou.com/motojet/ .

[Eric]

I have been playing around with the concept a bit. Bit fans and big motors arent always the best. If you can find a ducted fan electric motor and fan you will put out much much more thrust than a regular motor. Then when you basicaly strap that to the front of a ramjet you actually get some decent thrust.

The prototype we made was basically a ducted fan tube leading to an expanded combustion chamber and then a constriction / rocket nozzle, lots of fun but wickedly fuel hungry.

Eric

[Bruno Ogorelec]

These things are horribly inefficient because they operate at low pressures -- most of them at probably lower mean effective pressure than the pulsejet -- and spend a lot of additional power to drive the blower. A cute toy, but a blind alley.

[larry cottrill]

These things are horribly inefficient because they operate at low pressures -- most of them at probably lower mean effective pressure than the pulsejet -- and spend a lot of additional power to drive the blower. A cute toy, but a blind alley.

It worked on the fabulous Coanda Turbine Plane ...

L Cottrill

[Bruno Ogorelec]

It worked on the fabulous Coanda Turbine Plane ...

Yes. It also worked on the Caproni and on the Japanese Natter (?).

However, there is sometimes a huge gap between 'worked' and 'efficiently'.

[Red_Armor]

Hello to all
I wonder if some one can help me to start on this, I'm a beguinner and I don't know where to start...

thanks