To view image L99-632, see URL. -- Photographed on 12/10/96. -- 6% Hyper-X Launch Vehicle (HXLV) Model, including Pegasus booster at the Lockheed-Martin Vought Systems High Speed Wind Tunnel. Researcher involved is Dr. Scott D. Holland of the Aerothermodynamics Branch/Aero-and Gas-Dynamics Division. This model was designed to provide aerodynamic characteristics and control surface effectiveness of the booster stack on ascent between Mach 0.8 to 4.0. Model parametrics include Pegasus rudder and elevator settings. These photographs are cataloged a s PHX-012 in the Hyper-X photo archive.