PPRuNe Forums - View Single Post - Blackbird's thrust question
Thread: Blackbird's thrust question
View Single Post
Old 6th February 2013 | 12:03
  #107 (permalink)  
Brian Abraham
 
Joined: Aug 2003
Posts: 3,833
Likes: 2
From: Sale, Australia
about 80% of the air goes through the engine and 20% bypasses from the fourth stage into the afterburner
A Pratt & Whitney advertisement at Pratt & Whitney, Aviation Pioneers of Groom Lake - Area 51, Nevada quotes bleed bypass ratio as 20 to 40% (above Mach 2 only). The >Mach 2 is understood, as that's when the bleed is scheduled to open.
Brian Abraham is offline  
Reply
0