Military


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:



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