ROBBE Eolo

 Trainer / mild aerobatic electric powered helicopter.

Instruction manual  -  Exploded views

Build manual

Robbe Eolo Pro

Originally designed for NiCad/Nimh batteries so quite a large lipo can be fitted.  Does though result in a low CG and thus slows down cyclic response which makes it quite tame.  It will loop and roll though not particularly fast and on a couple of occasions I nearly ran out of height pulling a loop.