PPRuNe Forums - View Single Post - O2 use over FL410
Thread: O2 use over FL410
View Single Post
Old 4th January 2005 | 11:57
  #5 (permalink)  
speedbird_heavy
 
Joined: Mar 2004
Posts: 250
Likes: 0
From: Was Rhoose Regional
Concorde flew at hights of up to FL600 and I never saw any of the 3 flight deck with their oxygen mask on. So I don't think it is a must.
speedbird_heavy is offline