"davrecon" <
[hidden email]> wrote:-
> ... Sky 1 must be a very special aircraft for it can fly in this height. ...
Likely, like in the 1960's UK "Dan Dare" comic strip space stories, the author
imagined that the future would yield jet or rocket fuel several times more
powerful for weight or bulk than any that we have now.
> Back in the early sixties, NASA and the Air Force ran the X-15 program,
> the highest flying aircraft we'll publicly admit to. ...
If you mean the USAAF, say so, I am British, and to me "Air Force" without
more description means the RAF.
The X-15 wasn't any normal plane, it was a missile with a cockpit. It had a
rocket motor like a missile. It had round its back end 4 equal fins like a
missile; the underneath fin had to be jettisoned for landing. It didn't take
off but had to be launched from a plane in the air like it was a missile.