On Sun, 27 Jun 2004 08:02:31 -0700, Bill Hale wrote:

Check their website. Here's what I gleaned from that...

The vessel holds its sea level pressure. It is doubly redundant,
same as the single container-space suit solution. There is no
pressurization per se. They just let it leak.

This is an interesting solution considering that while the
space trip takes only minutes, the craft spends more than an
hour under the belly of the carrier plane.

-- Pete