Model Airplane Jet Turbine Engines

Model airplane jet turbines?
Are those little jet turbines that R/C guys put on model planes supposed to be oil lubricated or do they get there lubrication some other way?? And how does the fuel system on those little engines work?? I have seen one rev to 200,000 rpm and I was amazed that it could spin that fast without coming apart. I was just curious how those little engines work?
I’m really not sure. I built a small turbo-jet engine for a science fair project and i just added some castor oil to the fuel mixture and it worked fine up to about 15,000 RPMs. After that it was getting so hot that it was jsut burning the oil with the fuel which eventually led to by bearings fusing together. I really don’t know how it’s SUPPOSED to be done.
If you are interestied in this kind of stuff go to www.jet-man.com/actuel.html
It’s really interesting!
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