PPRuNe Forums - View Single Post - Blackbird's thrust question
View Single Post
Old 27th Jan 2013, 22:38
  #16 (permalink)  
peter kent
 
Join Date: Jan 2012
Location: Ontario
Age: 74
Posts: 82
Likes: 0
Received 0 Likes on 0 Posts
Being of a left brain I shy away from wooley classifications because they need explanations to go along with them.

I'm guessing that the partial ramjet idea is because at a flight speed typical of some ramjets some proportion of 'engine-compressed' air goes straight to the ab.

This classification for the J58 (if I've got it right) now includes all Mach2+ afterburning bypass engines when they are going at full speed. The F100/TF-30 etc have become partial ramjets?

The turbo ramjet classification is not open to interpretation though as illustrated by Bob himself. In his patent he says re his 3rd possible solution for M3 flight "Such an engine configuration would be called a turbo-ramjet..etc..both large and heavy..etc...combustion efficiency low rel to turbojet" "My solution to the problem is the recover bleed air turbojet (not the turbo-ramjet)".

He's got a lot to answer for. He's making us think for ourselves.
peter kent is offline