Just some thought about the cheap turbine in question.

As far as I can tell that turbine is a blatant ripoff of the Wren MW54.

Wren is a wonderful company which has given this field some really neat innovations. It really pisses me off that some guy over in China is copying this design and reselling it. The real crux is that you can't do anything about it except not buy it.

I'm a student and a father to newborn twins. Money I don't have. Still, I'd rather save up a little more and buy Wren. Don't forget that the price does not end with the turbine alone. You still need an airplane, radio, servos etc... All in all you might save $500 in a $5000 airplane. Resonably safe? Your call.

Just my two cents



p.s. Buying the other turbine you also forgo the Wren service which is about the best there is.