Ali, PM sent.

Thanks everyone for all the info; that's all good stuff.

Having had a look at some of the other forums there appears to be a lighter version of the Stingray coming out soon (5kg RTF for pure glider setup) so that might be even better than the 'standard' version.

Is there any advantage in any particular position of the turbine or just plonk it on top where there's room? What's the best way to mount it and is there a good starting point for thrust angle?