Estes Mercury Redstone 4 / Liberty Bell 7 Flying Model Rocket Kit, Advanced Skill Level, 1:34 Scale (001921)Recreate the excitement of the early days of NASA with this stunning 1: 34 scale replica of Mercury Redstone (MR 4) and Gus Grissoms Liberty Bell 7. Once assembled, the model stands nearly 29 inches tall with laser cut, layered balsa fins. Topped with a detailed plastic scale model of the historic Mercury spacecraft. Projected Max Altitude: 200 ft. (61 m) When Gus Grissom climbed into the cockpit of his Mercury spacecraft on the morning of July 21,