Beskrivning : Antares new medium-class launch vehicle being developed by Orbital - Cygnus, an advanced maneuvering spacecraft, and
Several interchangeable modules for pressurized and unpressurized cargo.
The Spacecraft consists of a Service Module (SM), which can be used with either a Pressurized Cargo Module (PCM) or an Unpressurized Cargo Module (UCM) (now cancelled). The PCM is based on the MPLM-Logistics-Module, while the UCM is based on the Express Cargo Carrier, which were both used with the Shuttle. The PCM is manufactured by Thales-Alenia.