{HEAD ~ A replaceable unit} in accordance 26, wherein {TAIL ~ the integral rotor} has a ring shaped rotor disc in which electromagnetically active components of the integral rotor are accommodated and to which rotor blades are fastened 
wherein
{ HEAD ~ A replaceable unit } in accordance 26 , wherein { TAIL ~ the integral rotor } has a ring shaped rotor disc in which electromagnetically active components of the integral rotor are accommodated and to which rotor blades are fastened
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH