In a specific embodiment, {HEAD ~ power generator} 26 is a Kohler 150REOZV and {TAIL ~ second power generator} 28 is a Kohler 500REOZV 
In a specific embodiment , { HEAD ~ power generator } 26 is a Kohler 150REOZV and { TAIL ~ second power generator } 28 is a Kohler 500REOZV
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH