Mark IV (Tepool II) Concept and writeup by Rarcher, original ooncept and oesign by Joe Homoki, toolkits by Neale Davidson; Special thanks to Lee Wood for chartless system
NOTES:
In the 2270s during the flurry of refits of many older Starfleet designs on aging but still secretly seen as valuable asset to the defense of the Federation, the Mk III Tepool ‘battle’ cruiser had, over the past 10-15 years since the 2260s, gone from 10 active vessels to a meager 2 by the 2270s. Given their age and costs to operate, many argued that these aged vessels should finally be retired into mothballs or scrapped.
But influential members at the highest back room ranks of the Federation and Starfleet found the arguments to pass the Tepool with one final refit, bringing it comparable up to modern standards.
However, in 2273 as the USS Tepool and the USS Runner Bay were brought into the dockyards of Utopia Planitia, both ship’s advanced sensor arrays picked up what were possible signals for the very threats they were designed to fight. The signals were still some years off, but for those that knew of the coming threat, it sparked a flurry of design and research for the possible arrival of these advanced alien threats withing 25 or so years.
These designers, researchers, and engineers went to work, not only upgrading the Tepool’s but other faithful designs as well within their current spaceframes. New forms of shields, phasers, torpedoes, and other systems all that went into the Tepool also found homes in the Enterprise, Loknar, Larson, Miranda, and other many designs. The refitting work caused quite a stir, naturally for those who were unaware of the coming threat, but given much of the sensor and other exploration dual purpose technology was explained as simply keeping the Federation ready to defend itself during its missions of exploration.
Finally on August 2288 all targeted ship classes, and the Tepool’s themselves had finalized system checks and were returned to active service. However, continued efforts were made to upgrade ships as was able with newly designed technologies.