PPRuNe Forums - View Single Post - Virgin Galactic Tech
View Single Post
Old 4th Nov 2014, 13:02
  #10 (permalink)  
BOAC
Per Ardua ad Astraeus
 
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes on 0 Posts
Here's my dumb question - why is 'feathering' required (?after apogee?)? Is it because at the high alpha of 're-entry' the nose-down moment of the unfeathered wings would be too great and require too much reaction control?

RetF4 - I expect with the high sweep there will be ample LE vortices which will almost certainly not be forming symmetrically and 'natural' roll damping looks minimal. I would propose 'leaving it alone' or otherwise the likelihood of 'out-of-phase' inputs would be high. I'm not sure (for many other reasons as well!) I would want to be in that cabin. You'd have terrible trouble with the champagne
BOAC is offline