Littoral Combat Ships (LCS)

FORBIN

Lieutenant General
Registered Member
Very interesting
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FRP really begin, 4 new for 2015 but all Perry removed and USN have only 8 Frigates/LCS !
After 2/3 new by year commissionned reaching a number of 32 with i hope later some new "real" frigates with a good armament.
 

Brumby

Major
Jeff (or anybody), I have a tough question for you, so first I better say I don't attack any warship -- as I'm located in the middle of Europe, I couldn't even if I wanted :) -- I found the most recent Report
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and the question is if there are weight allowances for significantly changing the armament of the USN LCS? I mean one could think of some additional weaponry to be added, but what's important is:

Status of Recent Littoral Combat Ship (LCS) Service Life Allowances

in that document, isn't it?

I read that GAO report too and essentially it provided the facts on the LCS program and confirmed known problems not only with the Freedom variant but also with the Independence pertaining to weight and stability issues.
The weight issues are structural in nature and hence much more problematic to fix if their mission capabilities and future growth expectancy are to be maintained. There are fundamentally three related issues which I would summarised (based on someone else more detailed analysis) :

1)Impact on performance
The ships by exceeding their expected weight have consequential impact on performance such as range, sprint speed, navigational draft, service life allowance and stability. For example, the big justification of the LCS was its speed (originally advertised at 50 knots) which now is no more than 36.5 knots.

2)Limit on growth

The report states that the service life allowance (SLA) weight has a specified limit of 50 tons to provide required weight growth margin for future equipment additions to the ship. Only two of the first six ships have met their specifications and the rest have missed by a substantial margin. Only LCS-3 and -5 have met their SLA margins and probably due to the fact that the problem was identified early in LCS-1 where buoyancy tanks were added and subsequent build had their hull lengthened. Based on a core crew of 40 versus future of 50; mission modules and additional defensive and offensive capabilities being contemplated, it would require some serious design changes to accommodate any future path

3)Impact on service life

The report also provides data on the ship's full load weights compared to their naval architectural limits. Operating at limit or exceeding it risk damaging the ship due to excessive strains and stresses imposed by the excess weight. LCS-1 to LCS-6 are very near to its limit except LCS-2 which exceeds it. This is before taking on board the enhanced crewing and planned mission modules let alone additional defensive and offensive capabilities.
 

navyreco

Senior Member
Littoral Combat Ship USS Coronado (LCS 4) Conducts Integration Exercise with U.S. Marines
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Last week Littoral Combat Ship USS Coronado (LCS 4) demonstrated the ability to rapidly stage and deploy a U.S. Marine Corps (USMC) ground unit. Marine Light Attack Helicopter Squadrons 469 and 303 conducted day and night deck-landing qualifications in preparation for an airborne raid of Marines from the 1st Reconnaissance Battalion onboard USS Coronado.

The ship’s inherent qualities, including speeds in excess of 40 knots, its large flight deck and reconfigurable mission bay, proved that littoral combat ships (LCS) can provide the Navy and USMC with significant operational flexibility anywhere in the world.
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navyreco

Senior Member
Some details on LCS MCM MP

U.S. Navy's LCS MCM Mission Package Takes another Step Toward Fleet Implementation
The U.S. Navy Naval Surface Warfare Center Panama City hosted a two-week demonstration in July that verified Sailors' ability to conduct maintenance on the Littoral Combat Ship's Mine Countermeasure Mission Package without the assistance of civilian scientists or engineers.

The Littoral Combat Ship Mine Countermeasure Mission Package (LCS MCM MP) Sustainment Demonstration (S-Demo) puts the Navy a step closer to transitioning mine countermeasure mission modules to the fleet, offering Joint Force Commanders mine detection and neutralization capability that does not put ships at risk in minefields.
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The LCS MCM mission package conducts its mine countermeasures operations through the employment of aviation assets and unmanned surface, semi-submersible, and submersible vehicles, equipped with an array of sensors and systems to detect, localize, neutralize, and sweep mines. These systems are designed to be employed while the LCS remains outside the mine threat area. Future mission package increments add capability, including beach zone mine detection, mine sweeping, near surface mine neutralization, and buried and surf zone mine detection.

LCS MCM MP Features:

XPrICmk.jpg

Remote Minehunting Module
» AN/WLD-1(V) Remote Multi-Mission Vehicle (RMMV) (2)
» AQS-20A
» Cradle Pallet Assembly
» Capture Spine
» Support Containers

eRG1IIn.jpg

Near Surface Detection Module
» MH-60S Helicopter
» AN/AES-1 Airborne Laser Mine Detection System (ALMDS)
» Support Containers

aptgMzP.jpg

Airborne Mine Neutralization Module
» MH-60S Helicopter
» AN/ASQ-235 Airborne Mine Neutralization Systems (AMNS)
» EX 64 neutralizers
» Support Containers

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Coastal Mine Reconnaissance Module
» AN/DVS-1 Coastal Battlefield Reconnaissance and Analysis (COBRA) System
» MQ-8B Vertical Takeoff Unmanned Aerial Vehicle (VTUAV)
» Support Containers

Unmanned Mine Sweeping Module
» Unmanned Surface Vehicle (USV)
» Unmanned Surface Sweep System (USSS)
» Support Containers

8x9Gf7d.jpg

Buried Mine Hunting Module
» Surface Mine Countermeasure Unmanned Underwater Vehicle (SMCM UUV) (Knifefish)
» Launch, handling and recovery equipment
» Support Containers

Mission Package Application Software (MPAS)
» Mission specific application software that support the MP in planning and executing the MCM missions
» Mine Warfare and Environmental Decision Aids Library (MEDAL)
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navyreco

Senior Member
U.S. Navy Littoral Combat Ship USS Independence (LCS 2) Successfully Completes Special Trials
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USS Independence (LCS 2 ) successfully completed Special Trials (ST), a series of at-sea tests on Aug. 2, following the ship's participation in the multinational Rim of the Pacific (RIMPAC) exercises that took place throughout the month of July. Independence, funded as a research development test and evaluation ship, conducted an ST instead of the usual Final Contract Trial (FCT).

The successful ST for LCS 2 was conducted off the Hawaiian coast where the ship underwent a series of specific tests under the supervision of the Board of Inspection and Survey (INSURV). Specific tests included; anchoring, launch and recovery of Rigid Hull Inflatable Boats, firing exercises using the 57mm gun, and full power propulsion and maneuvering tests.
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Bernard

Junior Member
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A research group is calling on lawmakers to cancel the Littoral Combat Ship, the U.S. Navy’s newest type of surface combatant, months after the Pentagon cut the number of vessels it plans to buy.

The Center for International Policy, a Washington, D.C.-based think tank that promotes global demilitarization and dates to the Vietnam War, on Tuesday released a report, titled, “Cancel the Littoral Combat Ship, A Warship that Can’t Go to War.”

Two types of LCS vessels are being built by Lockheed Martin Corp. and Austal, respectively. While different in design, they’re both meant to patrol coastal waterways and hunt for mines, small boats and submarines.


Regardless of whether it’s Lockheed’s conventional hull or Austal’s trimaran, the vessel is too lightly armored to survive a direct hit from a cruise missile, too heavy to easily accommodate future upgrades and too far behind in development, according to Jacob Marx, a research associate at the group and the author of the analysis.

“The LCS was meant to do a dozen things, and it has ended up doing none of them well,” he said in a press release. “It’s an overpriced, under-performing vessel that does not meet current needs.”

His colleague, William Hartung, director of the group’s Arms and Security Project, which tracks the international weapons trade, agreed. “At $780 million per mission-ready ship, the LCS is a bad deal for taxpayers,” he said.

Due in part to federal budget cuts known as sequestration, Defense Secretary Chuck Hagel in February announced that the Pentagon would slash the number of ships it planned to buy, from 52 to 32. “No new contract negotiations beyond 32 ships will go forward,” he said.

Both contractors are building ships — Lockheed in Marinette, Wisconsin, and Austal in Mobile, Alabama — under a pair of ten-ship, block-buy contracts awarded in 2010, according to a recent report from the Congressional Research Service.

The Navy had previously planned to buy a total of four ships per year, two from each contractor, but reduced that figure to three in its budget request for fiscal 2015, which begins Oct. 1.

The Senate Appropriations Committee, headed by Sen. Barbara Mikulski, D-Maryland, in July voted to agree with the service’s budget proposal for three ships — and to add $80 million for the advance procurement of materials for a ship to be built the following year. However, the House Appropriations Committee, headed by Rep. Harold “Hal” Rogers, R-Kentucky, the month prior voted to further reduce the quantity of ships to two, noting it was “extremely concerned” by Hagel’s comments.

The panel “believes that if the current LCS is not the correct small surface combatant of the future, the Navy should correct its course sooner rather than later and begin purchasing the correct ship well before fiscal year 2019,” according to a report accompanying its version of the defense spending bill. The committee “was surprised that the Secretary of Defense allowed so much time to pass before ensuring the correct small surface combatant begins construction,” the document states.

Congress is currently on recess and hasn’t yet passed either a defense policy or spending bill for next year.
 
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thank you, Bernard ... I just went through the full text at:
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where I noticed, for example, those critics suggested to procure
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instead of the current LCS; they also called the USN LCS "under-armored" or "too lightly armored", which interests me as I happen to know about the fancy fabric armor protecting the Luigi Durand d. l. Penne destroyers:
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and I just checked about Arleigh Burke class and:
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says there's 70 t of Kevlar on ...
 

Jeff Head

General
Registered Member
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They have already cancelled about 24 of the vessels.

At this stage I do not belive that they will cancel the others, especially with seven in the water and five more building. The first 12 are a done deal, and I believe the second 12 will also almost certainly be built.

What they most certainly should do is upgrade the armament, particularly the anti-surface fit. IMHO, if each LCS received an eight cell Mk-41 with four LRASM and 16 ESSMs, it would alleviate those issues. Have them go to sea with the 57mm gun, the RAM or SeaRAM, the VLS, two hels, and the towed array as a standard fit.

Then, as the need dictated, apply the MCM module, or the swarming speed boat weaponry as necessary.

Anyhow, that's just my opinion.
 
They have already cancelled about 24 of the vessels.

At this stage I do not belive that they will cancel the others, especially with seven in the water and five more building. The first 12 are a done deal, and I believe the second 12 will also almost certainly be built.

What they most certainly should do is upgrade the armament, particularly the anti-surface fit. IMHO, if each LCS received an eight cell Mk-41 with four LRASM and 16 ESSMs, it would alleviate those issues. Have them go to sea with the 57mm gun, the RAM or SeaRAM, the VLS, two hels, and the towed array as a standard fit.

Then, as the need dictated, apply the MCM module, or the swarming speed boat weaponry as necessary.

Anyhow, that's just my opinion.

as to the upgrades you suggested, Jeff, wouldn't it be a problem (maybe not at all! I'm just asking) to put them on LCS considering:

"For LCS seaframes, specific performance requirements that are sensitive to weight include the following:

• 3,500-nautical-mile range (endurance) when operated at a speed of 14 knots,
REFERENCE 18

• 40-knot sprint speed,

• 20-foot navigational draft
(the greatest depth, in feet, of the keel),

• 50-metric-ton service life allowance for weight, and

• 0.15-meter service life allowance for stability.
REFERENCE 19


REFERENCE 18
In 2009, the Navy received authorization from the Joint Requirements Oversight Council to reduce LCS’s original endurance requirement, which was a 4,300-nautical-mile range when operated at a speed of 16 knots, to the current endurance requirement. This reduction followed a Navy assessment of the two seaframe designs.

REFERENCE 19
The stability service life allowance is associated with a seaframe’s vertical center of gravity as measured from its keel."

I took those specifications from the GAO document quoted in http://www.sinodefenceforum.com/world-armed-forces/littoral-combat-ships-lcs-36-3993.html#post298850
 
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