coalface,
The development of the S-92 is moving along at a pace much faster than its contemporaries. Note that we developed the machine in about half the time of the EH and NH. As the program manager, I am the one to be blamed if it were otherwise! I made the chart below based on a quick net search, and included some sites that have the data. Note that the NH-90 dates are not very precise, perhaps someone from the program is reading this and can improve the accuracy.
Here are some comparisons:
First Flight---Cert (years)---Enter Service (years)
S-92, 1998---2002 (4 yrs)---2004 (6 yrs)
EH-101, 1987---1994 (7 yrs)---2000 (13 yrs)
NH-90, 1995---2004 (9 yrs)---2004 (9 yrs)
The S-92 is just about completed its certification data flight tests, with TIA expected in a few weeks (by mid Sept) and then FAA flight tests following quickly. FAA approval is expected in December of this year. There is much technical data on the militrary and civil versions at
www.sikorsky.com
http://www.rotorhead.org/military/cormorant.asp
http://www.vectorsite.net/aveh101.html