The Nova class Equinox history
Okay; so some background upon the target of these two models, before discussing the two kits in more detail.
The Nova class vessel could have had on its dedication plaque "The little ship that could..." or even "A design before it’s time!"
The background of the fictional ship came from the third season of Deep Space Nine. During the beginning of that season, there was a plan to give the writers more freedom for storylines by adding a small starship. The use of then runabouts was found to have limitations; the short-ranged craft were too small to compete with many of the standard models used in the series, and the station rotation wasn’t permitting boldly going, as much as it resulted in bodily waiting…
The history of the planning is fascinating (there were unresolved arguments over how big the ship would be permitted to be that even impacted seasons of unresolved certainty for years after!). The debates extended to even the changing of the ship’s name from Valiant to Defiant; because the producers were concerned with the audience getting confused, if two parallel-running Trek series both had a ship with the letter "V" (Voyager was running at the same time). Cooperation between Star Trek production teams has been notoriously strained and the Defiant found itself at the behest of competing interests of the Voyager staff and the Next Gen movie staff.
Rick Sternbach, who had a long pedigree with Star Trek, by that point of the history, designed a ship more in line with traditional Star Trek in-universe lore. The vessel had similar lines of Starfleet vessels, with extended warp nacelles, atop spanning pylons. The "Pathfinder Project" was the dubbed response by Starfleet to counter the Borg threat; designing small, adaptable, extremely fast vessels to counter any invading Borg cubes. These vessels would have s strong torpedo spreads, a wide range of phaser strips (that permitted frequency changes in the power [eh? Multi-frequency particle-phased energy?]). Sternbach introduced the design as a combat vessel with several interesting characteristics; two, upswept nacelles (similar to the Sovereign class design), what would later be used as a Defiant, inset-bridge, eight deflector crystals (signifying overlapping shielding systems; later used on the Defiant), and a series of heavy photon torpedo bays, set up in the sides and in the notching the front, arrow-shaped hull.
The design was rejected.
The producers decided to go with a more radical design with enclosed nacelles and a non-traditional formation (the issues of nacelle radiation proximity to the operational-hull [never explained], nor the ability of the nacelles too stabilize a warp field by having a line-of-site magnetomic flux chillers). Sternbach liked his design and shelved it for potential future use. He’d put a lot of thought and care in it and wanted to find a home for it in Star Trek canon.
The possibility resolved with the publication of the Star Trek Next generation Technical Manual. The semi-canon book [don’t ask me to clarify semi-canon in the age of Bad Robot…] explored the Borg response and Sternbach provided it, with some help from Dough Drexler, as a planned response-ship.
Years later, Star Trek Voyager was facing a season five cliff-hanger tale, that would involve a new ship, also stranded out in the Delta Quadrant, with a crew that had committed wrongs to save themselves. Season finales often involved cliff-hangers and an opportunity to pull out all the stops to draw in viewer, not only for the cliff-hanger, but for the next season.
A science ship, the Equinox, was scripted as the sister ship that Voyager was planned to confront. Sternbach pulled out his old, shelved, Pathfinder Defiant plans [by the way, Pathfinder, as a term, was later used in Voyager too, for a different storyline]. His logic was that the Starfleet admirals may have passed over the design for the Defiant-Pathfinder Project, but would use the ship as a replacement for the ageing Oberth class science ships [given the onscreen performance of the Oberth, this seems pretty reasonable…].
As a science ship, the design didn't need to be as weaponised as the original use would justify. Modifications to the plans were made; the bridge was made more traditional, the multiple deflector crystals dropped, the multi-torpedo bays swapped out for sensor pallets (two single torpedo bays were placed at the very bow of the design), and the engine pylons raised a bit. The vessel didn't have an impulse engine set-up in the original plans; this was fixed by adding one near the aft of the forward-upper-hull section. The rather unusual, multi-deck, Muti-door-access shuttle bay was retained (more about this, when I discuss the model kits, as it become a significant detail to the designs). The forward-notch pair of torpedo tubes were removed and a secondary deflector was added in that place.
The result was a very popular design, surprising, given how little screen time that it enjoyed. The Nova Class Equinox became a soon-sought paper model...
[next; the kits]