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The Tau Empire has only expanded into space during the last millenium. Despite this they have made remarkable progress in developing both civilian and military starships, and have now reached a level where their ships can be compared to Imperial designs. The development of the Tau fleet has been given the highest priority by the Ethereal Caste. By M39 they had spread through the T'au system and ringed their homeworld with orbital research and manufacturing facilities. Further expansion required a drive system capable of spanning interstellar distances, however, and this proved to be a formidable barrier.
Tau vessels were already equipped with a form of gravitic drive. This system projected a sheath of gravitic energy ahead of and around the vessel which was continually re-projected further ahead, drawing the ship behind it rather like an archaic sail. For two hundred tau'cyr, the Earth Caste grappled with the problem, only for the breakthrough to be handed to them. On the innermost of T'au Seven's moons, a routine geological survey discovered the remains of an alien vessel. The significance of the find did not disrupt Tau society as much as might have been expected. Tau theorists had long reasoned that other life forms existed and the verification helped confirm the belief that there was a greater destiny awaiting them. It seems that no Tau commented on the sheer good fortune of finding the technology that they so desperately needed on their doorstep just when they needed it.
The Tau were able to replicate the warp drive of the alien vessel but the initial test flights were a disaster. Achieving transition to the Warp required more than technology, it required psychically attuned minds and the Tau race boasted no psykers. Without them to guide the transition, no amount of power could breach the dimensional barriers.
The best the Tau could do was make a partial transition, forcing themselves into the void that separated Warp space and real space before they were hurled out again, like a ball held under water then released. Data gathered at great cost during the test flights was studied closely. The Earth Caste scientists made the observation that the boundary between real space and warp space was not a neat line. It was closer to being a turbulent ocean fomented by the tempestuous warp tides below. By carefully angling their descent toward the Warp and extending the field generated by the gravitic drive into a wing, shaped to hold the vessel down, a Tau vessel could extend the duration of the "dive" considerably. The speeds achieved in the ascent back to real space were staggering and this, coupled with the effect of the Warp on time and space, ensured that the real distance covered by the dive was immense. Early tests lost several drone ships because they inadvertently passed far beyond the sensor range of their recovery vessels. The details were soon resolved.
There was still a major constraint: only the most powerful (and bulky) drives could sustain the gravitic wing throughout the dive and the power drain meant that considerable recharge time was needed between dives. Also, by comparison to actually navigating the warp, the pace was still very slow. Compared to typical Imperial Warp speeds the Tau drive was slower by a factor of five. The speed was consistent though, did not expose the Tau to the perils of the Warp and enabled the Tau to expand beyond their home star for the first time.
The first major class of Starships built were the ponderous Gal'leath (Explorer) class vessels. These vessels laid the foundations for the Tau Empire and formed the basis of the Kor'vattra for its first wars with the Orks and the Nicassar. The Nicassar were less advanced than the Tau and after their speedy defeat were one of the first other races absorbed into the Empire. The Orks, however, posed a major problem: Ork ships were faster, better shielded and more heavily armed. The Gal'leath class was simply too expensive a resource to risk against such a dangerous adversary. Fortunately new, more compact gravitic drives led to the introduction of the smaller Il'fannor (Merchant) class and, to counter the numerous Ork escorts, the Tau developed their own Kass'l (Orca) gunships. The Tau were slow to build a gravitic drive with sufficient power for Warp drives small enough to create an independent escort, so the Kass'l would travel inside a larger vessel's gravitic sheath over long distances, disengaging when back in normal space. This, combined with the introduction of super-heavy Ion cannons and Barracuda fighters, helped restore the balance - but it was the power and efficiency of the Tau shipyards that prevented the Empire from being devastated.
- 1: Battlefleet Gothic Resources: Tau Fleets, pg. 96 (accessed 2010.11.26)
- 2: Tau Forgeworld Fleet PDF (accessed 2007.03.19)
- 3: Lar shi Variants PDF (accessed 2007.03.19)
- 4: Imperial Armour Volume Three - The Taros Campaign, pg. 212
|Capital Ships||Battleships||Gal'leath - Explorer • Or'es El'leath - Custodian|
|Cruisers||Il'fannor - Merchant • Lar'shi - Hero • Il'Porrui - Emissary • Lar'shi'vre - Protector|
|Escorts||Kir'qath - Defender • Skether'qan - Messenger • Kass'l - Orca Gunship • Kir'la - Warden Carrier Escort • Kir'shasvre - Castellan Heavy Escort|
|Other||Il'Emaar - Courier|
|Attack Craft||Manta • Barracuda • Tiger Shark • Remora Fighter • Orca • Sun Shark • Razorshark|
|Mercenaries & Allies||Kroot Vessels||Warsphere|
|Demiurg Vessels||Stronghold Class Commerce Vessel • Bastion Class Commerce Vessel|
|Tau Castes||Ethereal • Air • Earth • Fire • Water|
|Allied Races||Kroot • Vespid • Nicassar • Demiurg • Galg • Tarellian|
Ji'atrix • Morralian • Ranghon • Hrenian • Greet • Nagi
Brachyura • Formosian • Anthrazod • G’nosh • Yabi-Yabi
|Military||Fire Warriors • Kor'vattra • Auxiliaries|
|Other||Sept • Greater Good • Tau Lexicon|
|Notable Characters||Aun'Va • Aun'shi • O'Shaserra • O'Shovah • Puretide • El'Myamoto • T'au Sha'ng|