Spaceport2

From OPU Wiki

• Common Metals Cost very high
• Rare Metals Cost low
• Build Time very long
• Tube Connection Required yes
• Power Required 40
• Size very large
• Workers Required 4
• Hit Points high
• Scientists Required 2
• Armor medium

Description

While the Spaceport is treated as one structure for administrative purposes, it is actually a complex of tightly integrated structures that carry out a wide variety of space-related tasks. First, the Spaceport is a factory. The Spaceport can build launch vehicles as well as various satellites and starship components bound for planetary orbit. The Spaceport is also a warehouse facility, where satellites and starship components can be stored until needed for launch. Launch vehicles must be assembled on the launch pad, and may not be moved to the warehouse for storage. The Spaceport is also a fuel production and storage plant, capable of providing a number of exotic fuels and oxidizers.

Of course, the most obvious function of the Spaceport is to launch rockets, and that it does. In the interest of efficiency, a single pad is used for rocket assembly, fueling, loading, and launching. This pad is also used for landing Reusable Launch Vehicles, and for servicing and refueling them while they are on the ground. There are two main classes of launch vehicles. The expendable Single-Use Launch Vehicles (SULVs) are operated by both Eden and Plymouth. These vehicles are constructed primarily of composites and lightweight metal alloys and are usable only once. While their payload capacities and capabilities are much the same, Eden and Plymouth use somewhat different configurations. The Eden SULV is a two-stage rocket, using hydrogen/oxygen fuel in both stages, an aerospike engine in the first stage, and more conventional expansion nozzle engines in the second stage. The Plymouth system is a two and a half stage system using somewhat less advanced technology and ejectable strap-on solid-rocket boosters providing the "half" stage. All liquid engines are fueled by liquid hydrogen and oxygen, and use conventional expansion nozzle designs.

Eden has also developed a much more advanced Reusable Launch Vehicle (RLV). The RLV uses an all-composite airframe construction for maximum strength and minimum weight. The aerospike engine uses a unique hybrid propulsion. Exotic monoatomic oxygen is used as the fuel for takeoff and final landing burns. For most of the flight, the engine is powered by a gas-core fission reactor, heating liquid hydrogen as a reaction mass. Bleed liquid-hydrogen from the fuel tanks is also used as a heat-shield and critical-component coolant for reentry and landing.