Technology: Spacecraft Locomotion
FTL
The letters 'FTL' are a common abbreviation of the term 'Faster Than Light'. It has come to be a catch-all term for any means of transporting matter, energy or information from one place to another much sooner than light could travel between those points with respect to time. From a technical perspective, it is a misnomer, as it is physically impossible for anything to travel faster than the speed of light in a vacuum, with the exception of a handful of exotic particle types. All FTL transport in the Machinus works by warping spacetime in such a way as to displace objects extreme distances at extreme 'speeds' without actually 'moving' them in a manner that violates the principles of physics.
FTL travel poses a particular problem for the Machinus given our unique externally centralized means of storing and processing individuals. Any means of travel must allow a constant quantum teleportation communications link to a Mind World
[1] or a ship-borne central brain unit; if this connection is broken, the Machina units within the ship will cease to function for the duration of travel, and are unable to reconnect without specialized equipment. This thus precludes the use of other dimensions or similar means for travel by Machina units; any faster-than-light travel will thus need to remain in some form of realspace in order to remain viable as a primary means of travel.
With these constraints in mind, the Machinus have developed four primary means of FTL-travel: the aptly-named Warp Engine, the dimension-crossing Spaceripper (used only by autonomous drones due to aforementioned QTC link problems), and the massive station-based Skyrail and Railshot. Further details on these systems are to be found below.
[To be, or not to be a misnomer. That is the question. -K4]
[Whether 'tis nobler in the mind-unit to suffer the slings and arrows of allowing it to stand, or to take arms against a galaxy of misidentifications... -C]
[Would you two morons stop graffiti-ing my article already?! Your take on ancient poetry is no better! -Writer 02351291]
Warp Engine
Compared to its fancifully-named compatriot systems, Warp Engine is a very boring name, but it is quite descriptive as to its method of operation. It is also the oldest system on the roster, having first been built while the refugees that would become the Machinus were still aboard the generation ships; if it wasn't for the Warp Engine, we would still be languishing in centuries-old cans stuck in deep space.
[2] To this day, modernized versions of the Warp Engine are still among the most common means of Machinus FTL travel; every manned ship has one, and many have two or even three in case one fails. Although it is relatively slow for long voyages, it can be used anywhere, even in atmosphere, although this is dangerous and strongly discouraged.
The Warp Engine works by bending spacetime around the ship so as to form a 'bubble' of realspace; it then displaces that bubble through space, with faster displacements requiring more energy input. Tiny ships with huge power-to-mass ratios can make jumps across Machinus space in a just a week, as can the largest ships with the most efficient reactors available; mid-sized ships however, with their lower power-to-mass ratios and inability to mount the larger reactors, may take several months to do the same, and require over 24 hours to reach even the closest neighbouring star system. To some this may be blisteringly fast, but to the Machinus, keenly aware of much faster methods of travel that remain unusable to us as we are, it is aggravatingly slow.
Since the invention of the Skyrail the Warp Engine has begun to take more of a backseat role for interstellar travel, where the advantages of being able to cross many lightyears in mere seconds has become readily apparent. While the military and Astronomical Survey still make extensive use of it as there are no Skyrails beyond Machinus space, it has fallen out of favour on major shipping lanes; a direct Warp Engine jump between two neighbouring stars is slower than even a multi-leg Skyrail trip. As such, the primary use of the Warp Engine among civilians is as a quick means of flying between bodies in a stellar system, or on trips to backwater systems that have yet to receive a Skyrail connection; secondarily, they are used as backups should an entire Skyrail corridor be put out of action. Nevertheless, it remains an essential piece of equipment, one that the Machinus simply could not have prospered without.
Skyrail
The Skyrail gained its name for its method of action, which is functionally similar to a massive railway line in the sky, and because the term "Warp Field Mass Acceleration Station" never gained traction in the general populace. While the Warp Engine may be the workhorse of the Machinus, the Skyrails are the true backbone of our infrastructure, as its invention reduced interstellar travel times from days to mere seconds. The utility of this should be fairly obvious; shipping and passenger transport between Machinus worlds has increased tenfold since the 'rails first came online.
The Skyrail itself is not a drive component within a ship; instead, it is a pair of massive space stations, the largest of which are 60 km in length. Each station is located at the ends of a route through which traffic will be routed - usually this is in two different star systems. The Skyrail system work on similar principles to the Warp Engine; it bends spacetime to form a bubble of realspace around a ship. This is where the similarities end however. Rather than displacing a bubble through space, the Skyrails form warp corridors though which 'bubbled' ships can be sent at extreme relative velocities; the effect is somewhat similar to a wormhole. At one end the Skyrail station bubbles and launches the ship to be transported, and at the other end the rail there 'catches' the ship as it exits the warp corridor, and opens the bubble, allowing the ship to continue its journey after a trip of no more than a few seconds.
The Skyrail network in Machinus space is fairly extensive, but the network still resembles a web with hubs and spokes more than it does a grid, and there remain many systems that don't even have any Skyrail connection where traffic is not yet great enough to warrant one; as each station is so massive and complex, building the network quickly is a massive strain on Machinus resources. Despite this, smaller Skyrails with some stations no larger than a few hundred meters, have become common in densely-developed systems for fast transportation between planets and rail hubs, as it is much easier to build a small rail than a massive interstellar class station.
Because they rely on similar principles, it is possible to modify a ships Warp Engine so that it can break itself out of a warp corridor while it is in transit. This however requires extremely precise calculations and timing, as a difference of even a microsecond can throw a ship millions of kilometers away from its intended drop point. While not strictly illegal when adequate notification is given, this manoever is discouraged and disliked by rail authorities, and is a severe criminal offence when done without notifying the proper authorities.
Railshot
The Railshot is, as its name implies, derived from the Skyrail, using a rail station as a slingshot to hurl ships extreme distances with no requirement for a base station.
Spaceripper
Sublight Engines
[This is turning out to be rather long... -Writer 02351291]
[It's your
job. A vague encyclopedia is of no use to anyone. -C]
Notes
[1] See entry on the Machinus species for more details.
[2] See entry on the History of the Machinus for further details of the Warp Engine's effect on our society.ociety.[/small]