Design
A massive lenticular disc which houses the embedded EmDrive system. The middle insulation ring has the majority of offensive and defensive systems, hanger bays, and sensors. The dorsal and ventral hulls have a sunken disc that mounts various sensor and defensive systems.
Naming
Each station is named after the solar system that it is initially deployed to.
Block 2
Block 2 improvements were integrated in to RSF Sol and built in to the second Station (RSF Alpha Centauri). A greater space role meant that artificial gravity was essential as well as a different sensor and weapons fit. The main difference was the fitting of the new Pulsed EgDrive from BAe. Although the drive gave a slightly slower acceleration, it was more efficient and could provide a motive force in any direction meaning that the RR EmDrive clusters could be removed. The block 2 build also incorporated many smaller, but no less important, improvements and additions.
Construction
Analysis of the Sol space frame gave the design some construction improvements. Many parts were removed as they had been over engineered and greater strength added to others. The carbon nanotube construction also now holds an energy redistribution system, pumping hot and cold liquid through the hull, maintain an even temperature.
Gravity generation
The initial block 1 RSF Sol was design to operated in the Earth's upper atmosphere. Although it was space capable it could only generate onboard gravity by constantly accelerating or decelerating at 1g. When operating on Earth RSF Sol simply hovers in the atmosphere. it is not designed for heavy combat operations and therefore did not need any inertial compensation.
Cryogenics
Due to the length of journeys whentravelling to other star systems the block 2 fit includes large human cryogenic storage facilities. Cryonics UK suspended life support system takes up three large areas. Each is self-contained and can support the occupants for up to 500 years. Power is usually supplied by the main fusion core with backup power provided by an individual fusion core. These cores can also provide backup power to the rest of the craft.
RSF Alpha Centauri
The second RSF station was built in secret out in the asteroid belt. Unlike her sister Sol, RSF Alpha Centauri was designed to work predominantly in space. Built to the block 2 specification with onboard gravity generation, improved structural and armour specifications. The new pulsed EgDrive gives greater moments of movement but is not quite as fast as the original. Travelling sideways makes for a smaller cross-section when travelling at such high speeds.
2200 Model
By 2200 nano technology had made vast improvements. Now when a colony world is set up at a distant star the RSF build their station in system. A suitable asteroid is located and the nano construction facility is set in to motion. Seemingly out of nowhere the RSF Station starts to take shape. Other asteroids are sourced for specialist materials and brought to the factory for use.
The construction takes a couple of months to build an airtight space frame and over the next six months or so the station is completed and ready for operational trials.