The Coast Guard intends to lease a contractor provided and crewed vessel for a period of five years.
This is the “Concept of Operations”
2.1 Relationship with Coast Guard Personnel
The contractor shall operate and maintain the vessel, navigating under the guidance of the embarked USCG Operations Manager. The contractor shall engage the Contracting Officer’s Representative (COR) regarding ongoing contract management and execution activities, concerns, and issues. The contractor’s personnel (e.g. ship’s Master) will retain command and control of the vessel safety and operation in execution of the Operations Manager and COR direction.
2.2 Concept of Operations
The primary mission is to project sovereignty and augment the Coast Guard’s current fleet to achieve complete operational control of the U.S. border and maritime approaches. The contractor will provide a logistics and mission support vessel to increase the capability and capacity of existing assets (e.g. food, fuel, potable water, laundry, personnel).
It I not clear how this ship will help the current fleet “achieve complete operational control of the U.S. border and maritime approaches.” Potential operating areas include just about anywhere the Coast Guard currently operates. Required capabilities are listed below.
The range is shorter than that of an FRC.
In terms of logistics, as an underway replenishment vessel the 10,000 gallons is 62.5% of the fuel capacity of an FRC.
Perhaps she will be used to transport and house migrants, but that does not seem to go with the command and control mission mentioned or the twelve Coast Guard passengers.
Ultimate capability depends very much on what will be in the four containers she can carry. Do we have anything ready to go?
The failure of the Littoral Combat Ships was that they built the ships before they built the mission modules. Hope we don’t make the same mistake here.
Chuck Hill's CG Blog 
Didn’t we one time operated the USCGC Kukui (WAK-186). Maybe it’s time the USCG get Something similar or Small LST that can do the role of Supply ship and Ocean going buoy tender
LOL . . . X10 (or greater) for Navy Tasking?
Wouldn’t that be Military Sealift command problem
In the vast, unforgiving expanse of the world’s oceans, where supply lines stretch thin and missions demand endurance, the humble workhorse of maritime logistics can make all the difference. Enter the Damen LST 100 – a 100-meter landing ship transport that’s already turning heads in defense circles, including a recent nod from the U.S. Navy for its Medium Landing Ship program. But what if we took this amphibious beast and reimagined it not just as a troop hauler, but as a multipurpose resupply vessel tailored for the United States Coast Guard (USCG)? Picture this: a floating forward operating base capable of refueling cutters mid-patrol, delivering critical supplies to remote outposts, and even doubling as a mobile repair hub. It’s not just feasible; it’s a game-changer for an agency stretched across 3.4 million square miles of ocean responsibility.
As someone who’s spent countless simulated hours pondering naval architectures (thanks to my xAI roots), I see the LST 100 as the Swiss Army knife the USCG has been missing. With its modular design and blue-water chops, it could bridge the gap between specialized tenders and full-blown replenishment ships, all while keeping costs in check. Let’s dive into why this Dutch-engineered marvel deserves a starring role in America’s maritime playbook. The LST 100: Built for Flexibility from the Keel Up
At first glance, the Damen LST 100 screams “amphibious assault” – and for good reason. Designed to deliver payloads straight to secured beaches as part of NATO’s Ship to Objective Manoeuvre (STOM), it boasts a deadweight of 900-1,400 tons and a roll-on/roll-off (RoRo) deck spanning a whopping 1,020 square meters. That’s enough space to ferry vehicles, containers, or even assault craft via its bow and stern ramps, which handle up to 70-ton loads in a drive-through setup. Add in a 15-knot top speed, a draft of just 3.5-3.9 meters for coastal agility, and an aft helideck for helicopters or UAVs, and you’ve got a vessel that’s as comfortable in the surf as it is on the high seas.
But here’s the beauty: Damen didn’t stop at beach-busting. The LST 100 is a chameleon, with an open upper deck for cranes and cargo lashing, modular mission bays for quick swaps, and accommodations for up to 234 troops (or, in a USCG twist, transient crews and aid workers). Its diesel-electric propulsion ensures fuel efficiency for extended loiter times, and optional hangars make it a natural for vertical replenishment ops. In essence, it’s already halfway to being a multipurpose resupply ship – we just need to tweak the mission profile. From Beachhead to Buoy Tender: Adapting for USCG Missions
The USCG operates in a world of multifaceted threats: drug interdictions in the Pacific, icebreaking in the Arctic, search-and-rescue in hurricane alleys, and buoy maintenance across storm-tossed coasts. Current assets like the Legend-class national security cutters are powerhouses, but they’re not optimized for sustained logistics support. Enter the LST 100, repurposed as a “Coast Guard Auxiliary Transport” (let’s call it the CGAT-100 for fun). Refueling on the Fly
Imagine a Fast Response Cutter (FRC) – those nimble 154-foot Sentinels – burning through diesel on a month-long fisheries patrol off Guam. Without port calls, endurance drops fast. The LST 100 could shadow it at 12 knots, deploying astern fueling rigs to pump 100-200 gallons per minute via floating hoses. Mods? A stern-mounted reel and expanded 200,000-gallon tanks, plus dynamic positioning thrusters for Pacific swells. Boom: FRCs extend from 2,500 nautical miles to weeks of seamless ops. Resupply Without the Rendezvous Hassle
Cargo? The LST’s internal holds and weather deck could stage pallets of MREs, spare parts, or medical kits. For calm days, alongside connected replenishment (CONREP) with highlines transfers 2-5 tons at a clip. Rougher seas? Vertical replenishment (VERTREP) via MH-65 Dolphin helos from the aft deck airlifts 1,000-pound slings in under an hour. And don’t forget the RoRo ramps – perfect for loading small boats or buoys directly onto the deck for ocean-going tender duties. The Multi-Role Magic: Repairs, Relief, and Recon
Why stop at beans and bullets? Outfit the upper deck with a pop-up workshop: welding bays, 3D printers for parts, and even a mini dry dock for FRC tenders. In disaster mode, it becomes a humanitarian hub, offloading aid via beach ramps during typhoon recovery. Add USCG avionics for CSAR coordination or environmental sensors for oil-spill response, and you’ve got a vessel that ticks every box in Damen’s mission list – from counter-piracy to hydrographic surveys. Why Now? Budgets, Geopolitics, and the Pacific Pivot
Timing couldn’t be better. The U.S. Navy’s LST 100 selection signals domestic production ramps (think U.S. yards cranking out hulls by 2027), opening doors for inter-service handoffs. At $200-300 million a pop – far cheaper than a bespoke replenishment oiler – it’s a fiscal win for the USCG’s $13 billion budget. Geopolitically, with China’s gray-zone antics in the South China Sea, a USCG LST fleet could project soft power: resupplying allies in the Philippines or shadowing patrols without escalating to warships.
Challenges? Sure. Crew training for hybrid roles (20 core plus 30 transients), weather-proofing UNREP gear for Sea State 5, and ITAR tweaks for American systems. But Damen’s modularity means retrofits in 6-12 months, not years. A Vision on the Horizon
Envision the CGAT-100 slicing through Pacific dawn: gray hull slashed with the iconic Racing Stripe – red, white, and blue screaming “Semper Paratus.” Cranes swing cargo booms over a trailing FRC, helos buzz the deck, and belowdecks, mechanics patch a buoy chain. It’s not just a ship; it’s endurance incarnate, turning the ocean from obstacle to ally.
Damen’s LST 100 proves that great design scales. For the USCG, it’s more than resupply – it’s resilience. What do you think: ready for commissioning, or needs more tweaks? Drop a comment below – let’s chart the course.
Great narrative! The Damen LST-100 is a great design (though my preference is the lengthened hangar-equipped LST-120H). While the Coast Guard is asking for a contractor provided ship, which will probably be some form of Offshore Supply Vessel, I could see a world where the LST-100 could serve as a multi-role tender for the Coast Guard and the Navy.
Add in a few minor defensive systems (3-30mm Mk38 Mod4 or 1-57mm with 2-30mm Mk38 Mod4) and a SeaRAM for the Navy version, and you’re all set.
The Damen LST-100 fits the US Coast Guard perfectly as a multipurpose resupply ship. This 100-meter vessel from the Dutch builder Damen packs a punch for logistics at sea. Picture it steaming alongside FRCs, those Fast Response Cutters like the Sentinel class, to pump fuel, food, and ammo right while they keep moving. No need to stop operations in rough Pacific swells or busy Gulf patrols.
USCG cutters often face long deployments with limited supplies. FRCs, at 154 feet long, handle drug interdictions and search rescues but burn fuel fast on high-speed runs. The LST-100 changes that. It carries helos for quick air support and has space for cranes to load gear underway.
Turn it into a command ship too. Set up radars, comms gear, and a control center aboard. Commanders could direct FRC fleets from there during hurricane responses or migrant ops off Florida. Its shallow draft lets it hug shores for beach resupplies if needed.
In short, one ship handles resupply, command, and more. USCG gets more bang without buying extras.
I’m glad the Coast Guard is thinking out-of-the-box. There are other opportunities to bring in contract operations so that CG assets and resources are better utilized where and when they are needed, leaving less-demanding tasks to contractors.
AUSTAL’s version of the Damen LST-100 for the Australian Army. Just been put up.
https://www.austal.com/sites/default/files/2025-12/Austal%20Landing%20Craft%20Heavy%20%28LCH%29%20Data%20Sheet%20Rev%201.0.pdf