c rtcomm65.f -- common block 65
c
c common block to hold most of the parameters used in gas interaction
c calcualtions.  (some others are in common 71)
c
c 911204 MP/BS	added qopt
c
      COMMON  /BLCK65/ QBAR,DELSQR,ACAPT,ALOS,
     $     NSK1,NSK2,SIGC,SIGT,ATBCC,qopt