Sierra Nevada (SNC) has launched a new Dream Chaser cargo variant to serve Nasa’s Commercial Resupply Services 2 (CRS-2) programme.

The Dream Chaser Cargo System variant features a folding-wing design, which allows it to fit inside existing fairings, making it compatible with various launch vehicles.

The vehicle is equipped with non-toxic, non-hypergolic propulsion system and other fluids, and has low-g entry to a runway landing capability with immediate access to cargo, SNC said.

SNC space systems corporate vice-president Mark Sirangelo said: "Our Dream Chaser Cargo System provides unrivalled capability for pressurised and unpressurised cargo transportation, including accelerated return of cargo and critical science on every mission.

"The Dream Chaser Cargo System variant features a folding-wing design, which allows it to fit inside existing fairings, making it compatible with various launch vehicles."

"It also enables a wide portfolio of other space exploration capabilities, including servicing / construction for future space stations, satellite servicing and deployment, as well as retrieval and orbital debris removal."

The company said it has agreements in place with ISS partners and global space agencies, and intends to become a cargo transportation provider for Nasa missions.

Earlier this year, the Dream Chaser for European Utilisation (DC4EU) study confirmed the viability of using SNC’s Dream Chaser for space missions to low-earth orbit.

SNC’s cargo spacecraft design comes after Lockheed Martin unveiled a spacecraft design for supplies to the International Space Station.

Nasa CRS-1 contract is currently being managed by Orbital ATK and Space Exploration Technologies.

In 2014, Orbital ATK, Boeing, Sierra Nevada and presumably Space X made proposals for the CRS-2 missions, which will cover deliveries from 2018 through to 2024.