Old 27th Jan 2011, 14:58
  #15 (permalink)  
Pontius Navigator
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Join Date: Dec 2002
Location: Lincolnshire
Age: 75
Posts: 16,182
Originally Posted by safetypee View Post
From a legal 56,000ft limit (pressure jerkin not the aircraft), Firestreak could be expected to add a further 15,000ft capability depending on launch speed, Red Top even more.
In 1964, the FS era, the upper limit was, IIRC, 66,000ft as the pilots used the Taylor Partial Pressure helmet and pressure jerkins with sleeves.
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