Yes I did a Robbie saftey course with Tim Tucker (R22 test pilot) and he said that the factory has an Airframe that they are testing but are not happy with the powerplant, So Frank has given Allison/Rolls Royce a lot of money to come up with a hybrid C20/C30 engine (C25?)to power the beasty, He is also in negotiations with Mercedes Benz about designing a diesel specifically for the R66 as an option.
By the way that saftey course was the best $600 i've spent on flying, But if you do it make sure it is taken by a factory test pilot like Tim - I learnt so much about the designs of other types as well
