ATK Thiokol concept for a shuttle-derived heavy lift vehicle. The shuttle orbiter would be replaced by a 6.5 m diameter x 35 m long cargo container, powered by three Space Shuttle main engines. The shuttle RSRM motors would have a fifth segment added, and the External Tank would be stretched to 56 m long. Availability would be six years after go-ahead.

Manufacturer: Thiokol. LEO Payload: 91,000 kg (200,000 lb). to: 500 km Orbit. at: 51.60 degrees. Core Diameter: 8.70 m (28.50 ft). Total Length: 66.00 m (216.00 ft).