Further passageways near the blade root portion do not intersect, {HEAD ~ the reduced cooling} in that area causes {TAIL ~ expansion} and stress absorption 
Further passageways near the blade root portion do not intersect , { HEAD ~ the reduced cooling } in that area causes { TAIL ~ expansion } and stress absorption
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH