From Worldatplay

The Battle class Frigates are general purpose escort ships in service with the Royal Australian Navy, designed to provide anti-air defence, anti-surface defence, and anti-submarine defence to Australian and allied warships, and merchant convoys in wartime. They can also fulfill a ocean patrol function. The Battle class are named after famous Australian battles.

• HMAS Gallipoli (in service)
• HMAS Tobruk (in service)
• HMAS Long Tan (in service)
• HMAS Coral Sea (fitting out)
• HMAS El Alamein (building)
• HMAS Kokoda (to be launched)

They are AEGIS ships, and the smallest in service. They carry the AN/SPY-1K search radar, and an Australian designed and made CEAMOUNT illuminator array.

Specifications

Displacement	5,000 tonnes
Length	544 ft (148.9 m)
Machinery	2 General Electric LM2500 COGAG; two shafts, 50,000 total shaft horsepower (33 MW)
Speed	30+ kts
Armament	One 5 inch (127mm/L62) Mk-45 Mod 4 (lightweight gun) One 20mm Phalanx CIWS 8 RGM-84 Harpoons in 2 quad launchers 48 Cell VLS system (24 missiles fore, 24 amidships) Usual combat load 24 Standard SM-2 16 BGM-109 Tomahawks 8 VL-ASROC 2 Mk 32 Triple Torpedo Tubes for Mk 46 Torpedoes
Aircraft	1 or 2 S-70B-2 Seahawk