Other projects are a huge compound helicopter using rocket boosters, and a space shuttle design similar to the various SSTO spaceplane proposals of the 80s and 90s, such as HOTOL and the X-30 and X-33. They have had military contracts with the United States military since the 1970s, starting with the Icarus project, as well as making smaller computers for infantry used missiles. The corporation also sells high-tech spy satellites, such as its newest version of the Hannibal series, the Hannibal-3 spy satellite.