Sensing the crestfallen military and militia types who unwittingly opened a thread about knitting and whatnot, I have taken it upon myself to open this avenue for those with crueler intentions than making a sweater for “Muffin” the toy poodle (no offense to knitters or poodles intended. OK, no offense to knitters intended).
Here will will create the ultimate warfighting craft.
It will begin with:
A General Electric 20mm 7-Barrel Gatlin Gun on a 360 degree turret.
NO! NO! NO!
UncleBill! Shame on you!
For warships, engines first.
Diesel/electric turbine, I think.
Catamaran Bi-hull, or Tri-Hull though? Decisions, descisions…
mmmmm warfighting craft…
The craft must be very stealthy - engines that are shrouded in sound baffles and the exhaust muffled by forcing it out with the cooling water. Jacuzzi Jet propulsion will be useful when the water is shallow. PFD’s will be mandatory for the crew at all times as this MF will be fast and if you aren’t hanging on then you get thrown off!
NP: Amon Amarth - The Avenger
Ablative honeycombed titanium-alloy armor.
Multi-fire rocket system.
Minelaying capabilities.
Antipersonnel flechette grenade launchers.
And lots of cool-looking evil spikes all over the place! 
(And can we paint flames and stuff on the sides? Pretty please?)
Or, since this is the SDMB, perhaps we should have antipersonnel felchette grenade launchers.
Maybe we could try out the controversial ice-hull.
<grooooooooooooooan>
Or we could just say the hell with weapon systems and rely on Ogre’s puns to demoralize the enemy. 
“What are we supposed to use, man, harsh language?”
For tropical waters? You’re mad!
Pyecrete’s fine for the North Atlantic, but this should be more flexible.
Let’s designate the kind of craft we’re building. After all, we need some idea of tonnage.
How about–a **Privateer? An “armed, fast merchantman; intended to be a commerce & coastal raider.”
More money in this.
Tri-Hull, Ablative Honeycombed Titanium Alloy armor, Multi-Fire Rocket System, Minelaying, Anti-Personnel Flechettes, Anti-Boarding Spikes all over the place, neat flames painted on the side, Diesel/Electic powerplant with shrouded, muffled and baffled exhaust, and a 20mm Gatlin Gun. Jet Ski water jets for shallows.
Ya sure you don’t want the twin LM2500 Gas Turbines and Variable Pitch Props? Zero to Flank in 20 seconds!
hey Bosda Di’Chi of Tricor I don’t think you thought it out fully, this warcraft is going to be huge! A little puny diesel engine isn’t going to do squat, oh sure the warcraft will pollute the atmosphere and kill a few birdies. I think we are going to be looking for a major killing machine.
I suggest we get our hands on an old nuclear reactor from a Russian submarine. Lots of power to spare, and if it has a meltdown we will kill tons of little birdies.
Brim, I like the way you think.
A 500-watt sound system to blast “Ride of the Valkyries” as we bear down on our foes. Once we’ve abandoned stealth, of course.
Diesel Turbines, for your FYI Briminator, power theUS Navy’s Aegis class Guided Missile Cruiser. 
Get a Rolls Royce RNN-23 Nuclear reactor, they type the Brits use on their subs. A bit more pricey than second hand Russian stuff, but it’ll never, ever need to be refuelled.
Also, There should be a Helicopter pad aft, with 2 AH-1Z King Cobra Attack Copters and 1 SH-64 Seahawk/ Anti-sub transport copter.
Quick thought!!
How about a Hydrofoil!
Fast, fast, fast!
Or…a Hovercraft?
But no nukes. Takes all the fun out of things; and besides, if I’m gonna get chased all over the 7 seas, I don’t wanna get chased by Greenpeace.
On that topic, whose for sinking the Russian & Japanese Whaling Fleets?
Just as a shakedown cruise, I mean.
** Bosda** The USH has no “Aegis-class” crusiers, they have ships equiped with the “Aegis” system though…
I also like the “Ride of the Valkyries” idea
Dum da da DA da, dum da da DAA da, dum da da DAAA da, dum da da da…
Awwwwwwwwwwwwwwww, hell yeah.
And we’re gonna need some scurvy pirates to man our new craft! Arrrrrrrrrrrrrrrrrrrrrh!
(And who cares if we get chased by Greenpeace? Who, at one time or another, hasn’t fantasized about blowing those pretentious bastards off the map? Rainbow Warrior, my sainted Aunt Martha.)
Uh, that should be USN, not USH.
And I’m thinking of adding 2 rail-guns to it, so we can bombard the crap outta stuff way far away.
hmm…Tri-hull, I think. Yep, I’ve been reading the new * Popular Science*
"Captain ** UncleBill**, a “Greenpeace} ship is trailing us. We can either ram the mother-scooter or shoot at it!”
“Let’s do both!”
I’m going to add a bottle opener on the side here. Ya know, in case I can’t get my root beer opened during a battle or something.
Tri-hull is fine, very stable, but I insist that there be hydrofoils as well. Hydrofoil ships are faster and have a smoother ride, which makes for more accurate weapons-fire.
I’d suggest a Wave Motion Gun, but that sounds silly on a watercraft. Instead let’s have a nice Tomahawk cruise missile launcher.
And a Phalanx missile-defense system. (And we’ll leave the damn thing turned ON, unlike certain warships)
We need our own personal handheld weapons. I’m going with a chainsaw, double barrel shotgun, many sharp knives, and the biggest friggin hand gun you have ever seen. Plus lots of body armor.
We need some hot babes who can fight for our cause.
What is our cause?