Another brief pass-by, if it isn't too much trouble:
The proposed Klingon hull has certain design features reminiscent of Klingon ships over in the Star Fleet Universe - and, indeed, of hulls built with Klingon design influences by other empires in that setting.
For example: in the "Middle Years" era that roughly corresponds with the "five-year mission" dramatized for tri-video, the Klingons used the smaller
F5 frigate and
E4 escort to complement the larger D6 and D7. Notably, these ships placed their disruptor bolt emitters on the wings, as the engines were too small to install them on the nacelle caps. Although, these ships retain the "bulb" prow; even the much later (and much smaller)
G1 gunboats did their best to retain this design feature. (The way the SFU tells it, Klingon ships are inspired by a carnivorous marine reptile, to be found in the oceans of the Klingon home world.)
Of course, the Romulans acquired several Klingon hulls and converted them into the Kestrel-series. Klingon design influences are evident in the subsequent Hawk-series: ships such as the
SparrowHawk light cruiser,
SkyHawk destroyer, and
SeaHawk frigate reflect this - and have booms which are perhaps closer to those shown above. Although there is
a "Mongoose" variant of the SparrowHawk with a very different design layout.
Beyond this, there is a range of "fish ships" fielded by the
WYN Navy - a "pocket empire" at the crossroads of the Klingon, Kzinti, and Lyran empires. These ships, such as the
Orca war cruiser, the
Mako destroyer, and the
Barracuda frigate, use Klingon-type engines, but have other design features inspired by the
Orion Pirates - since hey were built in the same fleet yard used to construct ships for the Orion Cluster Cartel.
Perhaps the most divergent of these Klingon-influenced ships in the Alpha Octant are in the
Vudar fleet. The reptilian Vudar are a Klingon subject species, allowed to operate their own ships due to their high radiation tolerance -since they evolved in an area of high radiation in which the Klingons themselves struggle to operate). As seen with their
war frigate,
war destroyer, and
war cruiser, their engines also follow Klingon design templates.
While in the more distant Omega Octant, the Federal Republic of Aurora - comprised of star systems transplanted from the Federation, the Klingon Empire, the ISC, and elsewhere - eventually developed a "hybrid" destroyer design. While not on Shapeways as of yet, this ship was reverse-engineered from a leader variant F5 hull; the resulting ship has the engines of an F5 and a modified F5 boom, connected to a secondary hull inspired by the
Federation police cutter (which the Aurorans had previously modified for use as their frigate).
-----
In short, I would sooner see the proposed Klingon ship as an early example of a "post-treaty"
Romulan hull - one built to largely Klingon design schematics, yet with certain incremental changes (such as in the boom) leaning more towards more "refined" Romulan designs later in the timeline.
Personally - and one can take or leave this at their discretion - I prefer Klingon ships built for Klingon service to maintain more traces of the "manta ray" D6/D7 design, a least in terms of the shape of the forward boom.
