Exhaust out the back?

[Deron Douglas]

Hi, investigating my next big project and I came across this Hughes 500D:

http://www.heli-factory.com/modelle/...ren/index.html (http://www.heli-factory.com/modelle/hughes/hughes500emclaren/index.html)

The turbine is a JetCat with PH5 gearbox.... this allows the exhaust to come out the rear end where it does in the actual 500D.

Two questions,

1 - doesn't this get too hot for the boom?
2 - Does Wren have a gear-box like this so I can do the same?
3 - OK..one extra... would this setup be a stage One and no stage two setup.

Thanks.
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