On Sat, 13 Dec 2003 17:26:07 GMT, "Greg D. Moore \(Strider\)"
wrote:

How long did Columbia sit on Cx 39 before her first flight?

As Brian said, I think 4 months sounds about right. However, I suspect he's
not counting Enterprise which was used for a lot of testing also.

Enterprise was on the pad from May 1, 1979 to Jul 4, 1979. STS-1 was
on the pad from Dec 30, 1980 to Apr 12, 1981.

That's about the same total duration as Delta IV-Heavy will spend on
its pad.

Brian