More particularly, the present invention relates to an integrated power unit which combines the functions of {TAIL ~ an auxiliary power unit} and of {HEAD ~ an emergency power unit} into a single unit 
More particularly , the present invention relates to an integrated power unit which combines the functions of { TAIL ~ an auxiliary power unit } and of { HEAD ~ an emergency power unit } into a single unit
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH