02-08-2010, 07:29 AM
[quote name='Mudy' date='08 February 2010 - 04:14 AM' timestamp='1265582218' post='103982']
Why there is gap between upper and middle part in pict 3?
[/quote]
Struss interstage; Is easy, reliable and small mass overhead. So second stage can be lighted and will separate itself from booster, while booster is coughing it last breath. No need for retro (decelerating motor) on booster.
Why there is gap between upper and middle part in pict 3?
[/quote]
Struss interstage; Is easy, reliable and small mass overhead. So second stage can be lighted and will separate itself from booster, while booster is coughing it last breath. No need for retro (decelerating motor) on booster.