The main block of a drop power station 1, wherein the first and second rotatable elements are {HEAD ~ wheels} having {TAIL ~ certain and different speeds} of rotation and having friction disks as a connection between sub systems 
having
The main block of a drop power station 1 , wherein the first and second rotatable elements are { HEAD ~ wheels } having { TAIL ~ certain and different speeds } of rotation and having friction disks as a connection between sub systems
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH