The second re-entry vehicle is the subject of the NASA report TM-X-288 "AN INVESTIGATION AT SUBSONIC SPEEDS OF AERODYNAMIC CHARACTERISTICS AT ANGLES OF ATTACK FROM -4 DEG TO 100 DEG OF A DELTA-WING REENTRY CONFIGURATION HAVING FOLDING WINGTIP PANELS "
Link via:
http://ntrs.nasa.gov/search.jsp?R=75488&id=1&as=false&or=true&qs=Ntt%3Dnasa%2BTM-X-288%26Ntk%3DReport%2B-%2BPatent%2BNumber%26Ntx%3Dmode%2Bmatchall%26Ns%3DHarvestDate%257c1%26N%3D0