"Dave Whiley" wrote in message
...
Last November, I went to a lecture by one of the team involved in
preserving a different Vulcan in fast-taxi condition. One thing he said
was that the original design was for an absolutely straight leading edge,
but there were compressibility problems that almost led to the project
being cancelled. Changing the leading edge shape cured the problem.

I was wondering what it did to the RCS.