establishing a signal, {TAIL ~ PMIN}, representing a predetermined minimum output power produced by {HEAD ~ said second motor generator set}, 
establishing a signal , { TAIL ~ PMIN } , representing a predetermined minimum output power produced by { HEAD ~ said second motor generator set } ,
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH