hesham ACCESS: USAP Senior Member Joined 26 May 2006 Messages 34,686 Reaction score 15,520 15 December 2009 #1 Hi, http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720005229_1972005229.pdf Attachments booster.JPG 70.4 KB · Views: 69 orbiter.JPG 61.6 KB · Views: 72 1.JPG 65.8 KB · Views: 65