Outsize

“Finally, let us turn to the biggest megaships of them all, the fleet carriers. Including them in this work is a choice which I expect to be somewhat controversial – many would argue that a fleet carrier is a formation, not a vessel – but with respect to those readers who may hold that position, since the Imperial Navy treats fleet carriers as a single vessel for asset accounting and command designation purposes, so in turn shall I.

“Let us begin with a look at the history of the type. Fleet carriers were not known before the Exterminomachy (5782-5901). While before that time lighthuggers had met with occasional hostility, they had proven more than capable of defending themselves against local system defense forces, in particular with the Perreinar Wheel1 – and in those cases where they were not, it was because they had encountered a Power not readily opposed by pure military force. This changed with the arrival of the skrandar berserker probes, whose numbers and willingness to embrace suicide tactics made them a serious threat to even well-defended vessels, and eliminating breeding site for which required the transport of full task forces to their host systems.

“The first fleet carriers, then, were improvisations; lighthuggers pressed into service under the right of angary. Stripped down by removing all cargo capacity, much crew space, and all other less-than-essential facilities, and enhancing their fuel capacity with multiple drop tanks, it became possible to clamp a small number of light units – overstocked with fuel and supplies – to the spine of such a vessel, and have it haul them slowly and painfully to a target system.

“Such crude improvisations were fraught with problems, from wear and tear on ships and crew during the slow transit, to the risk of interception before the transported units could free themselves from the carrier – both due to the inefficiency of the mechanical clamps, and the need to cut clamps frozen in transit or actual hard welds used where clamps would not suffice, to even entire vessels lost from the carrier in transit. (The last of these to be recovered, CS Bloodwashed3, was salvaged with all hands in 6722.)

“Fortunately, by the third year of the Exterminomachy, new designs were emerging from the cageworks at Ashen Planitia and Armory. The second-generation fleet carriers were custom-built starships, or rather, the specialized elements (the “propulsion head” and “collier module”) were, since the second generation eschewed the rigid designs of the first in exchange for dispersed tensegrity structures.

“In effect, the starships transported by the fleet carrier, along with the specialized elements, formed the floating compression struts of the overall structure, while being linked by braided cables (derived from orbital elevator technology) into a unified structure. The majority of the propulsive thrust is provided by the dedicated propulsion heads, while specialized fleet mediator software enables the use of the drives of the various carried ships to balance the structure and correct attitude. Meanwhile, supplies carried in the collier modules, distributed by rigged flexpipe and by cable-crawling logistics robots, eliminated the need to overload any individual ship with supplies, and indeed enabled the transportation of greater volumes of fuel and replenishment. Moreover, such fleet carriers could separate instantly if intercepted by simply blowing the explosive cable-couplers and engaging their drives independently, the dispersed tensegrity structure providing adequate safety separation for this.

“Such dispersed-design fleet carriers served with distinction throughout the remainder of the Exterminomachy, and have remained a key element of IN subluminal doctrine since. While there exist a third generation of fleet carrier designs, these merely reflect the evolution in technological reliability that allows the physical cables of the second generation to be replaced with vector-control tractor-pressor beams, and does not reflect any change in fundamental design or doctrine.

“As ad hoc structures, of course, it would be incorrect to say that fleet carriers have classes, in the strictest sense. However, the individual propulsion heads and collier modules, the former full starships in themselves, do. Thus, we shall begin our examination of fleet carriers with a look at the most common propulsion head in Imperial service, the Legends-class…”

– Megaships of the Imperium, Lorvis Maric, pub. 7290


  1. Perreinar2 Wheel: a fight-and-flight maneuver in which a lighthugger puts its stern towards the battle and engages its interstellar drive, thus retreating from the engagement while simultaneously treating the enemy to the close-range efflux of a pion drive – a situation which is very rarely survivable for anything larger than a baryon.
  2. From the eponymous horse archers who had perfected the “Perreinar shot” centuries before.
  3. Lost in the wreck of CS Cúlíän Daphnotarthius, which suffered a structural collapse of the spine while outward bound to IGS 31238 in the second year of the war.

Consequences

FROM: CORE COMMAND (STRATEGIC READINESS DIVISION)
TO: ADM COMMANDING, HEAVY CAPITAL FLOTILLA
RELAY TO: ALL UNITS, HEAVY CAPITAL FLOTILLA

***** ROUTINE
***** FLEET CONFIDENTIAL E2048
***** STRATEGIC ACTION MESSAGE

FLT ADM QUANDRY, COMMANDING HEAVY CAPITAL FLOTILLA:

  1. THIS MESSAGE CONSTITUTES AN EXERCISE ORDER.
  2. AS OF THE RECEIPT OF THIS MESSAGE, YOU ARE DIRECTED TO PROCEED WITH ALL UNITS UNDER YOUR COMMAND TO THE TAKAVOL (CRESCENT NEBULA) SYSTEM, THERE TO RENDEZVOUS WITH OTHER UNITS OF THE IMPERIAL NAVY. YOUR ARRIVAL IN THE TAKAVOL (CRESCENT NEBULA) SYSTEM MUST OCCUR NO LATER THAN DAY 54 OF YEAR 5919.
  3. UPON ARRIVAL IN THE TAKAVOL (CRESCENT NEBULA) SYSTEM, YOU WILL PLACE YOURSELF UNDER THE COMMAND OF FLT ADM TIRIS DALAEL-ITH-DALASTEL, STRATEGIC READINESS DIVISION.
  4. UNDER THE COMMAND OF FLT ADM DALAEL-ITH-DALASTEL, THE HEAVY CAPITAL FLOTILLA WILL PARTICIPATE IN A SERIES OF WAR GAMES, AGAINST EXPERIMENTAL OPFOR PROVIDED BY OMRD STRATEGIC WEAPONS DIVISION, DESIGNATED IRON MOTHER. THE PURPOSE OF THESE WAR GAMES IS TO TEST FLEET READINESS TO CONTAIN AND CAUTERIZE AN EQUIVALENT-TECHNOLOGY INFESTATION OF BERSERKER PROBES. FURTHER DETAILS WILL BE PROVIDED UPON ARRIVAL.
  5. OPAREA FOR IRON MOTHER IS DESIGNATED AS CRESCENT NEBULA AND ASSOCIATED/INCLUDED VOLUME OF DEEP BLACK.
  6. GOOD HUNTING!
  7. AUTHENTICATION: SILVER GLACIER ORCA SCALPEL WIZARD VOLCANO / 0x99CDB31A8873445D

ADM/FLT CIVÍR VERANTHIDES
FIRST LORD OF THE ADMIRALTY

Exterminomachy

Little is known of the culture, former civilization, and even biology of the skrandar species. Extreme xenophobes, they had little interaction with the species of the Worlds even post-contact. The destruction of their homeworld along with the rest of Skranpen (Charred Waste)’s1 inner system in the self-induced nova of their sun (on detecting the relativistic approach of the Serene Fleet) has left little archaeological evidence available for study. Even the name of the Skranpen system, like that of the species, is phonemically generated and institute-assigned. What little is known of the skrandar is based on abstractions from damaged and disabled examples of the skrandar berserker probes and the two identified replication sites captured in the Exterminomachy.

What has been extracted from these sources (see declassified reports tagged PYRETIC PHAGE) suggests that the skrandar were in the grip of a peculiar type of madness at the end. It is believed among crypto-archaeologists that the skrandar had a preexisting cultural obsession with the Precursor Paradox: namely, why, when we see evidence of elder races and Precursor civilizations aplenty, and both life and intelligence appear to be relatively common within the Starfall Arc, has the galaxy not been colonized and/or hegemonized long since by ancient civilizations?

(Indeed, given the relative isolation of the Skranpen system, this paradox must have weighed even more heavily on the minds of the skrandar than on those species which originated in more populous galactic neighborhoods.)

The leading hypothesis, therefore, is that xenognosis came as a severe trauma to the skrandar; upon seeing the impossible, in the light of a presumed filter preventing starfaring civilizations from existing, they collectively went mad. If, they reasoned, there was – must be – some reason for the destruction of starfaring civilizations, then they themselves could only escape that fate by becoming that reason. And so they turned as a species to the manufacture of berserker probes designed to cull all other sapient, starfaring life.

It is easy for us today, looking back on the Exterminomachy, to attribute the tragedy of the skrandar solely to some inherent flaw in the species. But consider this: the skrandar were isolated, by their own choice. They had the opportunity, therefore, to go mad quietly, unknown to the rest of the civilized galaxy, hearing no voices but their own unreason.

For this reason, among others, the Exploratory Service at this time maintains its pro-contact, pro-intervention, pro-socialization policy towards emerging species. Whatever the short-term cultural impact of xenognosis might be, in the longer term, they very much endorse the view that an ounce of prevention today is better than a gigaton of cure tomorrow.

1. While identified here as a system of the Charred Waste constellation, the Skranpen system is not connected to the stargate plexus; it is, however, located centrally in the constellation in real space.