[Brutalis]

Allready tested in WW2

Doblhoff Jet tip Helicopter

because of the Designe of the smallengines in the Rotorblades it needs no ,,Drehmomentausgleich,, like the normal helicopters that have an Rotor on the back.

http://www.youtube.com/watch?v=GF9R9Zq6P9M

because of the missing soundrecording of it we have no idea today how it would sound