From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: [LML] Cabin Pressurization in SpaceShipOne
To: lml
Date: Fri, 03 Dec 2004 10:01:29 -0500
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Posted for "Larry Henney" <lhenney@attg.net>:

  Jeff,
  
  It's not the whole answer but the Nov Sport Aviation article on page 38
  acknowledges that White Knight bleed air is ducted into SS1 for purposes
  such as keeping the nitrous oxide at 66F, engine bay, and mechanisms.
  The unstated inference might be that pressurization also comes from this
  bleed air.  This and another related statement  on page 37 "every aspect
  of the pressure system is digitally monitored, and any leak of any kind
  is instantly reported on the TONU" leads me to believe that they are
  totally sealed and only face a differential change in pressure after
  release from 50K.
  
  I'm sure some math genius could tell us how much atmosphere is left
  above 50K.  Perhaps SS1 is pressurized to let's say 5000' MSL upon
  release.  The question remains, to what altitude would the cabin climb
  when the outside pressure drops from 50K up to zero (space?).  And would
  my ears pop?
  
  Inquiring minds need to know.
  
  Larry
  

"""
  So, what is the cabin pressure differential inside SpaceShipOne?
  
  And how does it get this...bleed air of the engines...doubtful?  And
  how does it control it, so you don't get the full magilla at 50,000'
  and overpressurize your brains during the initial stage?
"""