Landing Craft, Air Cushion

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Landing Craft, Air Cushion (LCAC)

Specifications
Builder	Textron Marine and Land Systems Lockheed Avondale Gulfport Marine
Power Plant	Four Avco-Lycoming TF40B gas turbines; each rated at 3955 shaft horsepower (2 for propulsion, 2 for lift) Two Four-Bladed 11.75 ft Dia Reversible-pitch propellers; Four 63 in Dia Double Entry Double Discharge Centrifugal Lift Fans
Length	Structure 81 ft On-Cushion 87 ft 11 in
Beam	Structure 43 ft 8 in On-Cushion 47 ft 0 in
Height Overall	Off-Cushion 19 ft 6 in On-Cushion 23 ft 6 in
Draft	3 ft 0 in Off-Cushion
Cargo Area	1,809 sq. ft
Cargo Deck Width	27 ft 0 in
Ramp-Width	Bow 28 ft 4 in Aft 14 ft 10 in
Ramp-Angle	14 deg
Displacement	200 tons full load
Capacity	60 tons/75 ton overload
Speed	40 plus knots with payload, sea state 2
Armament	2 - 12.7mm MGs. Gun mounts will support: M-2HB .50 cal machine gun; Mk-19 Mod3 40mm grenade launcher; M-60 machine gun
Crew	5
Range	200 miles at 40 kts with payload 300 miles at 35 KTS without payload.
Availability	LCACs per Day (from a total of 54) Day One - 52 Day Two - 49 Day Three - 46 Day Four - 43 Day Five - 40
Operating Time	16 hours per day per LCAC
Time per Sortie	Vehicle Load - 6 hours, 8 min Cargo Load - 8 hours, 36 min
Sorties per Day for Vehicles	2.6 sorties per LCAC per day Total = 104 LCAC sorties per day @ 40 LCACs per day
Sorties per Day for Cargo	1.86 sorties per LCAC per day Total = 74 LCAC sorties per day @ 40 LCACs per day
Personnel Capacity	24 Troops 180 w/PTM
Short Tons per Sortie	25 STONS 50 pallets (500 lbs per pallet)
Vehicles per Sortie	12 HMMWVs per sortie 4 LAVs per sortie 2 AAVs per sortie 1 M1A1 per sortie 4 M923 per sortie 2 M923 5-Ton Trucks,2 M198 Howitzers, and 2 HMMWVs per sortie
Time Details	Transit (45 NM @ 25 kts) x 2 = 216 min Well Deck Ops 62 min for vehicles 120 min for cargo Beach Ops 30 min for vehicles 120 min for cargo Friction = 60 min Total = 368 min (for vehicles) or 516 min (for cargo)
Unit LCAC Sortie Requirements	Infantry Regiment 269 HMMWVs = 23 sorties 10 5-Ton Trucks = 3 sorties Tank Battalion 58 M1A1 = 58 sorties 95 HMMWVs = 8 sorties 23 5-Tons = 6 sorties 8 Fuel Trucks = 4 sorties LAV Battalion 110 LAVs = 28 sorties 29 HMMWVs = 3 sorties 23 5-Tons = 6 sorties 8 Fuel Trucks = 4 sorties
Support Ship Capacity:	LSD 41 Class..............4 LCAC LSD 36 Class..............3 LCAC LPD-4 Class................1 LCAC LPD-17 Class..............1 LCAC LHA Class...................1 LCAC LHD Class...................3 LCAC

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Landing Craft, Air Cushion (LCAC)