Studio photograph of the 3% Pegasus Model, 3% keel line, 3 % Hyper-X forebodies (in gray), and keel line 4, Hyper-X forebodies (in black), in both pre-stage separation and post-stage separation configurations. These models were tested in 20-Inch Mach 6 Tunnel and 31-inch Mach 10 tunnel by Scott Holland and William C. Woods.
