LCI Specifications: Displacement 216 t.(light), 234 t.(landing), 389 t.(loaded); Length 158' 5½"; Beam 23' 3"; Draft, Light 3'1½" mean, Landing, 2' 8" forward, 41'10" aft, Landing, 5'4"forward, 5'11" aft; Speed 16 kts (max.), 14 kts maximum continuous; Complement two officer, 21 enlisted; Troop Capacity, six Officers, 182 Enlisted; Cargo Capacity, 75 tons; Armor, 2" plastic splinter protection on gun turrets, conning tower and pilot house; Endurance 4,000 miles at 12 kts, loaded, 500 miles at 15 knots; and 110 tons of fuel; Armament four single 20mm guns one forward, one amidship, two aft, later added two .50 cal. machine guns; Fuel Capacity, 130 tons, lube oil 200 gal.; Propulsion two sets of four General Motors diesels, 4 per shaft, 1,600 bhp, twin variable pitch propellers.

AMCU Specifications: Displacement 387 t.; Length 159'; Beam 23' 8"; Draft 5' 8"; Speed 14.4 kts.; Complement 41; Armament none; Propulsion two sets of four 1,800bhp General Motors 6051-71 diesel engines, General Motors singlr reduction gear, two shafts, variable pitch propellers.