Van Diemen Class Fast Combat Vessel
The Van Diemen Class is a large combat support trimaran and is capable of operating in multiple mission scenarios.
These vessels have a rear-loading ramp, capable of embarking most IFAA vehicles including the Abrams Tank as well as containerised mission modules.
-SNIP-
Missiles ESSM (3 x 8 Cell Mk41 VLS Launchers), Harpoon SSM (8 x Canisters semi recessed in superstructure)
Helicopters 2 x MRH 90 Taipans
Okay, I just looked over this again, and I noticed two things. First, this ship should easily be capable of handling four Taipans or two Chinooks. I can imagine it only carrying two Taipan for normal operations, but trimarans have ludicrous space available for aviation ops. And this IS a combat support ship.
Second: THREE MK-41VLS filled with ESSM? You do realize those things come quad-packed? There's 96 airdefense missiles on that ship! For it's intended role, one
maybe two MK-41 should be more than enough. Right now this thing is more capable than your old Brisbane in the AD role...