On Nov 29, 6:46*pm, Brian Thorn wrote:

Shuttle:
STS-1, 2, etc
STS-64B

Vandenberg Shuttle flights were evidently also called STS-1V, STS-2V,
etc.

I thought that the numbering scheme for VAFB flights was that they had
were (FY)2-(Letter). So the first flight scheduled was STS-62A, second
would have been STS-62B, and the next years flights were going to be
STS-72A, STS-72B, etc.

I don't think there ever was a x3 or a x4 envisioned.

Chris Manteuffel