On Sun, 04 Jun 2006 23:20:57 GMT, Bob Matthews wrote:

The next "concorde" will be a near orbit to destination craft.
I would not hold your breath waiting for it. You will see it
in a Bond movie long before you can ride one.

For a flight from New York to Singapore, with a peak speed of 7,000 mph,
what sort of G-forces would the passengers be subjected to? I realize
that this would vary with the profile, but it sounds like the beverage
cart would be a hand full.

Depends on how you get there. Back of the envelope, 1/2 G of thrust would get
the plane up to cruise speed in about 10 minutes. Cabin gravity would be at
about 1.12 Gs total. Mind you, it'd be a pretty steep "slope". :-)

If you need solid-fuel rockets to boost you to speed, of course, acceleration is
a lot harder.

Ron Wanttaja