http://wren-turbines.com/
http://www.amtjets.com/
http://www.simjet.com/
http://www.digitech-turbines.com/
http://pstjets.com/j600.html
http://www.cat-ing.de/turbines/index.htm
http://www.jets-munt.com/
http://www.funsonic.com/
http://www.rolls-royce.com/civil_aer...s/default.jsp;)



have fun...
this list is far to be complete..

edited to add some...