MARS ALLIANCE ALDERBARAN CLASS
Role: Long Range High Speed Raider and Attacker
Length:248m (with Collector funnel retracted)
Width: 58m at radiators, 28m at crew midsection
Weight: CLASSIFIED (estimated as 24,000 tonnes empty)
Crew: 30
Powerplant: 2 military grade Fusion plant, Output Classified. Auxiliary Photovoltic systems.
Propulsion: 1X linear Bussard Ramjet, 4x multi-axis Pellet Drive, Thrust CLASSIFIED, 8x Manoeuvring engines, 4x Breaking engines
Weapons: 3 x ring laser, 8 x Mass drivers, 20 x CIWS laser system.
Sensors: 24 x Full Spectrum Optical Sensor mounts, Many x PRESENCE distributed optic sensors, Many x PST Radar systems, Many x IR detectors, Many x Radar detectors.
EW capacity: Unknown, but generally regarded being equal to 2nd Generation Earthling ECM and ECCM.
With each new year of the war came new developments, new strategies, new tactics and new technology. With each new generation of warships put into service by either side came the declaration some new design, some new ship, was the game changer, the one that would change the course of the war. This was never truer than with the Mars Alliance's
Aldebaran Class.
In the on going arms race between the two warring planets, both sides had been trying to develop new ships that could fly faster and further, but still have enough fuel for the trip home. Fuel capacity was a huge limit on the acceleration any ship was capable of; a ship capable of accelerating at 2g for an hour was useless if it mean expending all its fuel to do so.
Both sides tackled the problem head on, developing new propulsion methods, high energy fuels and advanced engine design. But for the majority of the war, fuel capacity was the major limit on spacecraft performance.
Until the Martians developed a Bussard ramjet. Bussard ramjets were not new, having been developed for interstellar spacecraft hundreds of years before the war, but their application in warships until that point was felt to be limited. They had great linear acceleration, but lacked the fast reaction times and manoeuvrability given by more conventional engines. The Martians solution to this was extremely simple: have two kinds of engines; the Ramjet, for high speed transit flight, and conventional pellet drives for manoeuvring and combat.
The
Alderbaran class is built around a linear Bussard ramjet, with the engine forming the core around which the rest of the spacecraft is built. The arrangement of the spacecraft is unusual in that the regular engines are at the opposite of the Ramjets exhaust nozzle, surrounding the interstellar hydrogen funnel instead. Instead, the ships primary weapon systems are housed around the ramjet nozzle.
The reason for this is to protect the more fragile collection funnel from damage. The nozzle itself is just an exhaust; damage to it was deemed to have a lower impact on operations than if the funnel was damaged. thus in combat, the exhaust is presented to the enemy (covered by an retractable cover) while the more fragile funnel is protected by the entire ship.
The funnel itself is retractable, consisting of several long, superconducting wires that spread out to form the collection funnel, held rigid by the current put through the cables to produce the electromagnetic field that funnels interstellar hydrogen into the ramjet. The funnel has two configurations (shown at lower picture) the first, the funnel is at its normal shape during the acceleration phase; in the second, the funnel forms a loop to allow the continued collection of hydrogen during deceleration.
The true acceleration capable by the
Alderbaran class is classified, but it is be-leaved to have been able to sustain .5 g acceleration indefinitely. As the ramjet used different fuel to the pellet drives, the Alderbaran could quickly transit to any battlezone without worrying about having fuel for the trip home, giving it excellent combat loitering time. within moths of its first deployment,
Alderbaran crews had already developed a new tactic: the yo-yo. using this tactic, the
Alderbaran would accelerate into battle with its ram jet, reverse and decelerate, engage targets at range with missiles and lasers before restarting its ramjet engine and accelerating away, faster than any missile could catch. Using these tactics,
Alderbarans became the bane of SDI forces trying to defend Saturn and Venus.
The
Alderbaran once again put Mars in the lead in the technological war, resulting in the Earthlings once again, trying to catch up. While this would eventually result in a Earthling ramjet craft, the
Quicksilver class, SDI's tactical planners decided to focus on a different course of action, resulting in the
Geist class and the beginning of Project Longbow.