Tag Archives: Medium Landing Ship (LSM)

Looks like the LSM concept may just happen after all…

Posted on by Leave a comment

The Damen LST 100 design, which was picked last December to be the Navy LSM– coming to a shipyard near you

TOTE Services in Jacksonville yesterday picked up a $2.6 billion contract from Naval Sea Systems Command’s PAE Maritime to serve as Vessel Construction Manager (VCM) for the McClung-class Medium Landing Ship (LSM) program, with the first hull to be delivered by 2029.

You know, the mini-LSTs that the Navy is building for the Marines to shuttle NMESIS missile batteries and light armor around the Western Pacific in a sea-denial-from-the-shore kind of philosophy, setting up what are now termed as a “Marine Corps fires expeditionary advanced base.”

A Navy Marine Expeditionary Ship Interdiction System launcher, a command and control vehicle, and a Joint Light Tactical Vehicle are transported by a U.S. Navy Landing Craft Air Cushion from Pacific Missile Range Facility Barking Sands, Hawaii, out to U.S.S. San Diego, Aug. 16, 2021. The movement demonstrated the mobility of a Marine Corps fires expeditionary advanced base, a core concept in the Marine Corps’ Force Design 2030 efforts. (U.S. Marine Corps photo by Cpl. Luke Cohen, released)

The contract will cover management of constructing the first eight LSMs, with a program of record for up to (hold your breath) 35 of the baby phibs built to the Damen LST 100 double-ended Ro/Ro design.

This thing:

Via Damen:

The LST100 is 100.68 metres (330 feet) long with a beam of 16 metres (52 feet) and a draught of 3.58 metres (12 feet). It is suited to a diverse range of operations. With its ability to transport personnel, vehicles, equipment and cargo, the vessel can be used in patrol, landing, survey and reconnaissance operations, as well as for the delivery of humanitarian aid & disaster relief.

In its standard design, it features bunks for 282 personnel. Cargo can be transported on the RoRo deck (500m2), vehicle deck (400m2) and on the helicopter deck. The vessel is able to sail at speeds of up to 14 knots, with an endurance of 3,890 nautical miles. At an endurance speed of 10 knots, it can reach up to 7,530 nautical miles.

The LST100 features extensive flexibility. Its modular design enables straightforward adaptation and upgrade without compromising the benefits of standardization. For example, with the addition of a standard, 20-metre modular block, the vessel can be enlarged to the LST120 design during construction.

Besides the intended purpose and general use as a ‘phib, the LSMs have an obvious use in Over The Horizon – Special Forces (OTH-SF) operations, stand-off Mine Counter Measures (MCM) operations support, and as a general helicopter/UAV “lilipad.”

Now, to be clear, TOTE is not actually going to build the LSMs, simply award and manage shipbuilder contracts- you know, something NAVSEA should be capable of doing, but in program after program has proven absolutely incapable of doing so. Looking at you, FFG and LCS programs.

The Damen LST 100 McClung-class landing ship (LSM)

Anyway, the award announcement, for the record:

TOTE Services LLC, Jacksonville, Florida, is awarded a $2,206,000,000 firm-fixed-price contract for vessel construction management services to award and manage shipbuilder subcontracts for the new construction of up to eight Medium Landing Ships. This contract includes options which, if exercised, would bring the cumulative value of this contract to $2,605,075,850. Work will be performed in Marinette, Wisconsin (65%); Houma, Louisiana (16%); Jacksonville, Florida (9%); and other locations (10%), and is expected to be completed by June 2030. If all options are exercised, work will continue through September 2031. Fiscal 2025 shipbuilding and conversion (Navy) funds in the amount of $1,933,941,000 (88%); and fiscal 2026 shipbuilding and conversion (Navy) funds in the amount of $272,059,000 (12%), will be obligated at time of award and will not expire at the end of the current fiscal year. This contract is awarded with funding from the One Big Beautiful Bill Act (Public Law 119-21) and directly supports the national effort to revitalize and rebuild American shipbuilding. This contract was competitively procured via the System for Award Management website (sam.gov), with one offer received. Naval Sea Systems Command, Washington, D.C., is the contracting activity (N00024-26-C-2421).

Old School LST…Maybe Cool Again?

Posted on by Leave a comment

Check out this short (1 minute) moto reel of a Greek Jason-class tank landing ship HS Samos (L174) hitting the beach during exercise “Parmenion-23” on the Island of Chios and disgorging a series of vehicles including M113s, M48A5 MBTs, Humvees, and M109 SPGs in a very dated “right on the beach through scissor doors” kind of way.

You know, ala D-Day and Iwo Jima kinda stuff.

The U.S. got out of the LST biz almost a quarter century ago when we retired the excellent Newport-class tank landing ships.

The Newports went big, the 1960s designed vessels pushing some 8,500 tons or so, but could carry a light battalion of troops (430~) and almost 30 vehicles in as close to 17 feet of water as they could and, using a causeway, get them feet dry on the beach.

U.S. Navy crewmen stand at the end of a causeway as the Newport-class tank landing ship USS San Bernardino (LST-1189), with bow open, prepares to lower its ramp off Coronado, August 1979.

However, the Greek LST above is, as you can see, pretty handy. At just 4,500 tons, they can float with their back end in 11 feet of seawater and carry 350 troops and two dozen vehicles. They also have a helicopter pad for S-70-sized birds and four 36-foot LCVPs in davits.

They have a modest self-defense suite including an OTO Melara 76/62 gun, 2 twin BOFORS 40L/70 anti-aircraft guns, and 2 Rheinmetall 20 mm anti-aircraft guns.

Something like the Jason class, which was built in the 1990s and only has a 120-man crew, could be the off-the-shelf answer to the U.S. Navy’s Medium Landing Ship (LSM) program, previously called the Light Amphibious Warship (LAW) program, which aims to land small Marine Littoral AShM detachments on isolated Pacific atolls.

The Navy wants 18-36 LSMs about this size and capability, so it seems a good fit. 

Swap out the OTO for a 57mm MK110, the 40mm guns for a C-RAM launcher, and mount a couple of 25mm or 30mm Bushmasters for small work– all equipment that can be taken from decommissioned LCSs!

Food for thought rather than trying to reinvent the wheel. Just look at somebody else’s wheel. Plus, the Greeks have been in the littoral biz for more than a couple of millennia so they may know a thing or two.