[X] Project Soyuz (Heavy Frigate)
Before making your decision, you of course investigate the nuances of each request. What catches your attention in regards to the requested cruiser at least is the sensor readings of the new Klingon Bird-of-Prey. There isn't in-depth tactical data, but just captured sensor readings regarding it's accelerations and silhouette tell you a great deal. You're looking at a forward torpedo launcher in the nose and at least one heavy disruptor cannon at the tip of each wing. Maybe two medium cannons slaved together - it's hard to tell. The heavy single engine at the aft is probably a full fifth of the mass, although it seems tuned for sheer acceleration rather than maneuverability. With the impulse power it puts out you think the distinction is rather moot. If the ship's captain wants to slow down and turn on a dime, it can.
The main downside is the sheer fragility of the spaceframe. Any major hit past the shields will almost certainly destroy it, which goes some way towards explaining how the Klingons can milk that kind of performance out of 150 kilotons of starship. The only real parallel to anything in the Federation arsenal is the Skate, which of course was an expression of the same ethos of "flying gun" that the Klingons appear to have made institutional policy. They might still be ahead technologically, but you might be able to produce something superficially similar and in the same mass range. The question is if you want to.
Having decided to take up the task of designing a heavy frigate, the first thing to do is decide on the overall shape of the ship. The first option is to use a large saucer section, utilizing its large interior space and generous firing angles. This would be the heaviest-mass option, but you wouldn't have any budget left for a secondary hull. Instead any extra hull and the nacelles will need to be attached to the saucer itself rather than having a defined engineering section. It would be a first for this kind of design work, but may offer a guide towards reusing primary hulls for different mission profiles.
The second option is for a half-saucer, which retains many of the firing advantages while still leaving you enough space for a secondary hull to contain the deflector and warp core. This would also allow you to fit different warp configurations, offering you the opportunity to more finely tune the Soyuz for the strategic or tactical role that best exploits its advantages. The removed parts of the full saucer section would mean you can't fit aft-firing phasers, however, reducing coverage of the port and starboard arcs with a standard phaser configuration.
The final option is for an arrowhead design like the Skate. Much like the full saucer, this will commit you to use of the existing profile once the primary spaceframe is constructed. Unlike the full saucer, you will not be able to add much in the way of building out from the hull. This is the cheapest option and will be able to offer the most cost-effective tactical results, but there will be sacrifices to make regarding the limited internal space. Like the Skate, the Soyuz will very much be a pure warship. Whether that is actually a good thing is up for debate.
[ ] Full Saucer (200,000 Tons, No Secondary Hull)
[ ] Half Saucer (140,000 Tons, Secondary Hull)
[ ] Arrowhead (160,000 Tons, No Secondary Hull)
Hull Shape | Mass | Phaser Slots | Engine Slots |
Full Saucer | 200,000 | 6 | 3 |
Half Saucer | 140,000 | 4 | 2 |
Arrowhead | 160,000 | 6 | 2 |
Two Hour Moratorium, Please