The Estes Orbital Transport was introduced in Catalog #683 in late 1968. It was designed by Wayne Kellner, one of the most prolific and innovative designers at Estes Industries. The Orbital Transport was based on an early NASA scramjet design for the Space Shuttle. It featured a parasite glider that deployed at ejection and parachute recovery for the booster. The Orbital Transport was released as Cat. No. K-42 and had an introductory price of $2.50.
The Semroc Retro-Repro™ Orbital Transport™ is very close to the original with some modern changes. The original balsa nose cones are kept. All fins are precision laser-cut balsa. A Kevlar shock cord mount is added for better retention. The original rubber shock cord is re-placed with elastic. The 18" parachute is re-duced to 12" for less drift.