Library /sys$common/syshlp/ncphelp.hlb SET, EXECUTOR, DELAY FACTOR number  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Specifies the number by which to multiply one sixteenth of the
 estimated round trip delay to a node to set the retransmission timer
 to that node.  Use a number in the range 16 to 255.  The default value
 is 80.