×
Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Ranks Military Pay Chart (2024)
HOME
NAVAL WARFARE INDEX
MODERN FLEETS
WARSHIPS BY COUNTRY
SHIPBUILDERS
COMPARE WARSHIPS
SHIPS BY CONFLICT
SHIPS BY TYPE
SHIPS BY DECADE
SHIPS BY CLASS
COLD WAR SHIPS
MODERN VESSELS
Naval Warfare

LCAC (Landing Craft Air Cushion)


Air Cushioned Landing Craft / Hovercraft [ 1987 ]



The impressive-looking LCAC is currently in active service with American and Japanese naval forces.



Authored By: JR Potts, AUS 173d AB | Last Edited: 05/02/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

VIEW SPECIFICATIONS [+]
The World War 2 Normandy invasion of Europe by Allied forces on June 6th, 1944, was comprised of thousands of ships of all types. The main task of the fleet was to provide shore bombardment and carry the troops, supplies, and armored vehicles going ashore in the 3,500 specialized landing craft.

Up to this point, this operation became the largest recorded use of landing craft in history. LSTs (Landing Ship, Tank) were large craft used to shuttle tanks and armored vehicles to shore while LCIs (Landing Craft, Infantry) were built to accommodate up to 200 troops and the LCA (Landing Craft, Assault) was designed to carry a platoon of 31 infantrymen. By 6:55AM on Omaha Beach, one of the fived named beachheads during the first invasion wave, the 116th Regiment of the 29th Division suffered 99% causalities in just fifteen minutes. As the second wave approached the blood-soaked beach, the landing craft took artillery and mortar rounds fired from German positions ashore, some receiving direct hits and killing all those onboard. When some of the LCA's made it to the beach, the entry-exit ramp along the front of the hull was dropped down, instantly exposing the infantry to a waiting enemy, machine guns trained on the masses of body. It was only a matter of time before German machine gun fire ripped these men to pieces. As other LCAs approached the beach, some coxswains could not see through the smoke covering the beach and became disoriented, dropping their ramps in deep water, forcing the troops to wade ashore in water that was chest high. Many would fall into the sea, drowned by the weight of their own equipment and weaponry. It was obvious that the World War 2-era landing craft were a long way from being efficiently capable of safely landing men and material on enemy shores.

In 1977, amphibious prototype designs were being evaluated for the American military - a program that would eventually produce the "Landing Craft Air Cushion" (LCAC) vehicle. The ambitious purpose of this new design was to supply American war planners with a craft that could effectively conduct an amphibious assault complete with troops, equipment and supplies, while being launched from ships "beyond-the-horizon". This vessel would wade across sea and reach shore and travel over the beach and beyond if need be. The selected prototype was a design sponsored by Bell Aerospace of New Orleans, Louisiana - a firm with experience in building hovercraft that were tested in the Vietnam War. Funding started in 1982 and, by 1987, the first LCAC 1 was deployed aboard the USS Germantown (LSD-42). The last craft, LCAC 91, was delivered to the US Navy in 2001. The largest deployment of these craft to date consisted of 11 examples deployed in the Persian Gulf War during Operation Desert Storm in 1991. None were combat tested however.

The LCAC is launched by any US Navy surface ship featuring a "well deck". To operate the craft, she needs a base crew of five personnel. The craft measures in at 87 feet, 11 inches long (26.4m) and 47 feet wide (14.3 m). Her hull is supported by a cushion of high pressure air that is ejected downward towards the surface below and constricted by a skirt. The LCAC is powered by four main engines that provide lift and propulsion and, much like a helicopter, provides the LCAC with six dimensions of motion. The engines are Avco Lycoming TF40B gas turbines supplying a combined 16,000 shaft horsepower. Two are used for lift and the remaining two are used for propulsion. For propulsion, the LCAC sports 2 x 4 bladed reversible pitch propellers that are 11.75 feet in diameter and navigate the craft like a ship-born vessel's rudder system. For lift, there are 4 x 2 entry double exhaust centrifugal fans that measure up to 63 inches in diameter. The crewman who steers the craft is called the "craftmaster" - a yoke is used along with foot rudder controls to move the craft in any direction. The downward air is enclosed by a flexible rubber canvas skirt system allowing the hull to hover four feet above any surface. ©MilitaryFactory.com
The LCAC maintains 5,000 gallons of internal fuel and the thirsty girl needs 1,000 gallons per hour to operate. Each LCAC fields two ramps - the bow ramp is 28.8 feet wide and the stern ramp is 15 feet. Men and equipment and be unloaded simultaneously to allow the LCAC to return to the fleet for additional men or supplies. The craft can make 40 knots (47mph) under load making her a valuable and fast transport along with her ability to come ashore on 70% of the world's coastlines. She can cross and operate over ice, soft sand, gravel and swampland. The vehicle needs 500 yards to stop and 2000 yards to make a radius turn. The LCAC's downward airflow creates high dust levels, and if disabled, the craft is difficult to tow. She displaces 170 tons when fully loaded while weighing 87.2 tons when light and allows for the transport of 82.7 tons of cargo with her 1,809 sq ft bay. This weight limit supports 180 fully equipped troops or an Abrams main battle tank as well as a variety of armored vehicles or cargo.

In 1996 plans were made to modernize the LCAC. A standard "Service Life Extension Program" (SLEP) was approved in 2004 and called for upgrading all active LCAC's and extending their usefulness some 30 years at about $20 million each. The service program covered upgrades to the onboard electronics as well as a new buoyancy box replacement for each of the 74 craft. The expected new extended life will be from 2014 to 2027 (based on the craft's original launch date).

The primary amphibious assault vehicle used by the USMC (as of 2010) was the AAV-7A1. This tracked armored system can hold 25 troops and can also be launched from well decked ships with a speed of 43 knots but can only access 17% of the world's coast line and has an operational range of 300 miles. However, unlike the LCAC, the AAV is not an "over the horizon" assault vehicle which remains the primary characteristic of the LCAC.

With the shore-based defensive weapon systems available worldwide today, launching LCAC's up to 50 miles off shore proved to have obvious safety appeal for the US naval fleet. As the LCAC moves inland into a controlled staging area - supported by helicopters overhead - the enemy would shift its focus away from the fleet itself. A high-speed, over-the-beach craft able to make a possible tactical surprise with troops and material in tow and not exposing the fleet to enemy fire was the desired LCAC mission. Of course safety in any combat situation is impossible to control, however, and we have history to see the failings of amphibious assault craft in past wars.

The LCAC has a number of short comings; they are constructed of rubber and canvas with no armor protecting the crew or troops on board. A very large craft also provides for a very large radar image. Once on land her speed and maneuverability is greatly reduced down to 6 knots. The six gas turbines are noted as being very noisy and can be heard at a great distance. If damaged, LCACs have proven very difficult to tow and driving in reverse is taxing for the driver. Naval gunfire will be out of range to support the initial landing and the buildup of combat troops and material ashore will be slow due to the turnaround time for LCAC.

It is of note that the LCAC, and the men and women who will come to count on them, have not been tested in combat.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

Specifications



Service Year
1987

Origin
United States national flag graphic
United States

Status
COMMISSIONED
In Active Service.
Complement
5
PERSONNEL


Class
LCAC
Number-in-Class
91
VESSELS
Ships-in-Class


LCAC 1; LCAC 2; LCAC 3; LCAC 4; LCAC 5; LCAC 6; LCAC 7; LCAC 8; LCAC 9; LCAC 10; LCAC 11; LCAC 12; LCAC 13; LCAC 14; LCAC 15; LCAC 16; LCAC 17; LCAC 18; LCAC 19; LCAC 20; LCAC 21; LCAC 22; LCAC 23; LCAC 24; LCAC 25; LCAC 26; LCAC 27; LCAC 28; LCAC 29; LCAC 30; LCAC 31; LCAC 32; LCAC 33; LCAC 34; LCAC 35; LCAC 36; LCAC 37; LCAC 38; LCAC 39; LCAC 40; LCAC 41; LCAC 42; LCAC 43; LCAC 44; LCAC 45; LCAC 46; LCAC 47; LCAC 48; LCAC 49; LCAC 50; LCAC 51; LCAC 52; LCAC 53; LCAC 54; LCAC 55; LCAC 56; LCAC 57; LCAC 58; LCAC 59; LCAC 60; LCAC 61; LCAC 62; LCAC 63; LCAC 64; LCAC 65; LCAC 66; LCAC 67; LCAC 68; LCAC 69; LCAC 70; LCAC 71; LCAC 72; LCAC 73; LCAC 74; LCAC 75; LCAC 76; LCAC 77; LCAC 78; LCAC 79; LCAC 80; LCAC 81; LCAC 82; LCAC 83; LCAC 84; LCAC 85; LCAC 86; LCAC 87; LCAC 88; LCAC 89; LCAC 90; LCAC 91


National flag of modern Japan National flag of the United States Japan; United States
(OPERATORS list includes past, present, and future operators when applicable)
Amphibious Assault
A shallow draught, and other qualities, give this vessel the ability to support amphibious assault operations close-to-shore.


Length
87.9 ft
26.79 m
Beam
47.0 ft
14.33 m
Displacement
87
tons


Installed Power: 4 x Lycoming/Allied-Signal TF-40B gasoline turbines developing 16,000hp; 4 x Double-Entry Fans centrifugal or mixed-flow; 4 x Vericor Power Systems ETF-40B gasoline turbines.
Surface Speed
40.0 kts
(46.0 mph)
Range
322 nm
(370 mi | 595 km)


kts = knots | mph = miles-per-hour | nm = nautical miles | mi = miles | km = kilometers

1 kts = 1.15 mph | 1 nm = 1.15 mi | 1 nm = 1.85 km
2 x 12.7mm M2HB machine guns OR 2 x 40mm Mk-19 Mod3 automatic grenade launchers OR 2 x M60 general purpose machine guns OR 1 x GAU 30mm Gatling gun.


Supported Types


Graphical image of an aircraft medium machine gun
Graphical image of an aircraft heavy machine gun
Graphical image of an aircraft Gatling-style rotating gun


(Not all weapon types may be represented in the showcase above)
None.


Military lapel ribbon for the Cold War period
Military lapel ribbon for early warship designs
Military lapel ribbon for the Falklands War
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Korean War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Attack on Pearl Harbor
Military lapel ribbon for the Russian Invasion of Ukraine
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2


Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective naval campaigns / operations / periods.

Images Gallery



1 / 15
Image of the LCAC (Landing Craft Air Cushion)
Bow view of an empty LCAC
2 / 15
Image of the LCAC (Landing Craft Air Cushion)
Bow view of an incoming LCAC
3 / 15
Image of the LCAC (Landing Craft Air Cushion)
Bow view of a speeding LCAC
4 / 15
Image of the LCAC (Landing Craft Air Cushion)
Close-up detail view of the propulsion fan on an LCAC
5 / 15
Image of the LCAC (Landing Craft Air Cushion)
The lowered bow deck of the LCAC is seen to good effect
6 / 15
Image of the LCAC (Landing Craft Air Cushion)
An LCAC traverses land
7 / 15
Image of the LCAC (Landing Craft Air Cushion)
A US Navy ship prepares to accept an incoming LCAC
8 / 15
Image of the LCAC (Landing Craft Air Cushion)
An LCAC wades aboard a US Navy ship
9 / 15
Image of the LCAC (Landing Craft Air Cushion)
High angled view of a fully-loaded LCAC
10 / 15
Image of the LCAC (Landing Craft Air Cushion)
The stern deck is shown to good effect in this image
11 / 15
Image of the LCAC (Landing Craft Air Cushion)
An LCAC accepts cargo through its stern ramp
12 / 15
Image of the LCAC (Landing Craft Air Cushion)
Overhead view of a partially loaded LCAC
13 / 15
Image of the LCAC (Landing Craft Air Cushion)
An LCAC traverses dusty terrain
14 / 15
Image of the LCAC (Landing Craft Air Cushion)
An LCAC on rough ground
15 / 15
Image of the LCAC (Landing Craft Air Cushion)
A lowered LCAC in Haiti

Disclaimer | Privacy Policy | Cookies


2024 Military Pay Chart Military Ranks DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com. No A.I. was used in the generation of this content; site is 100% curated by humans.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing military medals and ribbons. Special Interest: RailRoad Junction, the locomotive encyclopedia.


©2023 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2023 (20yrs)