Estimated weight at ~300k tons, mounting four of the Type 3 impulse thrusters for maximum maneuverability. The larger overall size would provide real estate for more torpedo launchers, both ahead and astern. Slap four to six of the rapid-fire launchers on the front of this bad boy, with two more behind to ensure dispensing of party favors to everyone in range, and a decent number of phasers spaced around the ship to keep everyone honest.
Season to taste with supplementary modules, then cry when you read the bill for your dinner party.
In this case, I would probably assume that a modernized version of the Thunderchild conceptually would be a four deck main saucer with ~200m diameter, a engineering hull in the
Sagarmatha mode or Inline with around eight decks (so the warp core fits) and probably in the ballpark of 80-120 meters in length, probably a triple nacelle cruise configuration as the
Federation class or the
Galaxy-X refit. Likely triple or quad rapids to fore, and one or two aft, with a mirrored set of four phaser banks in each quarter of the saucer, plus perhaps as many as three more in the secondary hull covering blind angles. This one
would skimp on drives- perhaps even a single centerline type three- in exchange for the best shields which could be fitted. But we are not likely to construct such a vessel, for
many reasons.
(Also, as a QM runner myself I find it mildly hilarious that
@Sayle is working on a potential complete rework of phaser mechanics to solve the problem of "we don't like the two phaser limit." It's very Starfleet, going for a complex new thing when a dead simple solution ("Provide some way of increasing the number of phasers a ship can fire, with some kind of attached cost to discourage simply slapping it onto everything") would solve the problem with basically zero extra work.)
Edit: or better yet,
multiple such solutions, only some (or even none) of which are mutually exclusive from a technical/mechanical perspective, and with the "cost" in question encouraging different solutions on different ships. Something like a local reactor module that occupies floor space but doesn't significantly add cost would naturally be more attractive for a larger ship than a smaller one, a reinforced EPS grid that cost-scales on ship mass would naturally favor smaller vessels, whilst a dedicated power feed that increases the cost attached to each phaser would naturally favor ships that are only mounting a small number of them. With, obviously, the budget option being "do none of those and be only able to shoot two at a time." Plenty of room for arguments about what to put on any given design, reasonable explanation for why not everything is going to have them slapped on, and doesn't need any new mechanics to be designed and implemented.
