How many 100-plus-metre Lürssens are currently in build?

Nine, according to BOATPro data and Boat International's published count. The total includes Jassi (launched February 2026, Q3 delivery), Project O3 (110 metres, in sea trials), Project Cosmos (114.2 metres, fuel-cell-equipped), Project Boardwalk (hull 13797, 5,350 GT, 2026 delivery), and additional hulls in earlier stages that have not been formally published.

What is the methanol fuel-cell installation on Cosmos?

Project Cosmos carries two 500-kilowatt methanol fuel cells supplementing the conventional propulsion package. The fuel cells primarily serve hotel-load generation at anchor — eliminating the need to run auxiliary generators for domestic electrical load. Cosmos is among the first superyachts globally to integrate fuel-cell technology at this scale and is the bellwether for Lürssen's broader pathway toward methanol-augmented propulsion across the larger fleet.

When does each of the named 2026 projects deliver?

Jassi: Q3 2026, per Lürssen's guidance. Project O3: not formally announced; sea trials commenced in early 2026, which typically precedes delivery by three to six months. Project Boardwalk: 2026, per industry tracking. Cosmos: not formally announced post-trial, but the timeline tracks with a 2026 or early 2027 delivery. The yard's owner-confidentiality practice means specific delivery dates often emerge only at or after handover.

Which Lürssen facilities are building which projects?

Lürssen operates four principal facilities: Bremen-Vegesack (the historic main yard), Rendsburg (the largest construction hall, suitable for boats up to approximately 180 metres), Aumund-Lemwerder, and Bremen-Lemwerder. The largest current projects are built primarily at Rendsburg. Jassi was launched at Rendsburg on 6 February 2026; Project Cosmos and the larger pipeline projects are also Rendsburg builds.

How does the Lürssen 2026 pipeline compare to Feadship and Oceanco?

Lürssen's nine 100-plus-metre hulls in build is the largest published pipeline at this size globally. Feadship's order book at 100-plus metres is smaller in absolute numbers but the yard delivers approximately three large yachts annually across all sizes. Oceanco's pipeline includes the 117-metre Bravo Eugenia and several other large projects but at a smaller annual cadence than either Lürssen or Feadship. The combined 100-plus-metre fleet in build across all three yards is in the range of 18 to 22 hulls at any given time.

Lürssen's 2026 Pipeline Beyond Jassi: O3, Cosmos, Boardwalk

The Jassi launch on 6 February 2026 was the visible Lürssen news of the year, but it was not the only Lürssen news. The yard currently has nine 100-plus-metre projects in various stages of build across its four facilities, and the 2026 delivery pipeline is the busiest the yard has had in any single year of its modern history. The boats that will follow Jassi out of the construction halls over the next eighteen months will, between them, define what the top end of the large-yacht market looks like through the back half of the decade.

This is the read on the rest of the 2026 Lürssen book. The yard’s communication practice is conservative — most of these projects have not been formally announced with names or delivery dates, and the information available comes from a combination of yard-source observations, industry tracking by Boat International and SuperYacht Times, and the published BOATPro data that aggregates the global new-build picture. Below is what is verifiable, what is inferable, and what is worth watching as the projects work through the next year of build and delivery.

Project O3 (approximately 110 metres)

Project O3 is the 110-metre Lürssen build that began sea trials in early 2026 — the same general timeframe as the Jassi launch but in a separate hull at a different stage of completion. The boat has been under construction at Rendsburg and is now in the trials sequence that typically precedes delivery by three to six months. If the trials run cleanly, O3 will deliver in the late summer or autumn of 2026; if they require multiple revision cycles (which is not uncommon at this scale), delivery may slip into early 2027.

The design credit, propulsion configuration, and owner have not been publicly disclosed. Photographs from the trials sequence show a relatively conventional Lürssen exterior — substantial bulwark height, distinctive single-funnel arrangement, generous beach-club aft — consistent with the yard’s recent house style at the 100-to-115-metre range. The boat is large enough to carry substantial owner-amenity volume but not so large as to be constrained at the standard Mediterranean marina berths.

The thing to watch on O3 specifically is the noise data from the offshore trials. Lürssen’s published target for boats at this size is a sub-50-decibel measurement at the dinner table at cruising speed, and the yard’s recent deliveries at the 90-to-110-metre size have consistently met or beaten that target. A boat that hits the number is a boat that will be quietly celebrated within the broker community for the next decade; a boat that misses it goes back into the yard for revision.

Project Cosmos (114.2 metres, methanol fuel cells)

Project Cosmos is the more technically significant Lürssen project in the current pipeline. The 114.2-metre boat carries two 500-kilowatt methanol fuel cells supplementing the conventional propulsion package — the largest methanol-fuel-cell installation on a superyacht to date. The primary purpose of the fuel cells is hotel-load generation at anchor: the system can carry the boat’s full domestic electrical demand (air conditioning, lighting, galley, entertainment, water systems) without running the auxiliary diesel generators, which is the most meaningful single environmental improvement Lürssen has been able to engineer into a current production large yacht.

The technical configuration uses methanol as the fuel — currently grey or blue methanol but with the architecture engineered for eventual green methanol substitution as the fuel becomes commercially available at scale. The fuel cells convert methanol to electrical power with substantially lower NOx, SOx, and particulate emissions than diesel generators, and with carbon dioxide emissions that match the carbon content of the fuel (which is meaningfully lower for green methanol than for diesel).

The propulsion-system architecture itself is conventional twin-screw with the fuel cells supplementing rather than replacing the diesel propulsion. This is the right engineering choice for a first-of-class installation at this scale — it preserves operational flexibility and provides full redundancy if the fuel-cell system needs to be taken offline for maintenance or fuel-availability reasons.

Cosmos has been in build at Rendsburg and is in the late stages of completion. Delivery is not formally announced but the timeline supports a 2026 or early 2027 handover. The owner has not been publicly confirmed.

Project Boardwalk (hull 13797, 5,350 GT)

Project Boardwalk is hull number 13797 in the Lürssen sequence, with a published gross tonnage of approximately 5,350 GT and a scheduled 2026 delivery. The boat is among the largest Lürssen projects currently in build by gross tonnage — comparable in volume to Launchpad and meaningfully larger than Jassi at 3,420 GT.

Length, design credits, and owner attribution have not been formally disclosed. A 5,350-GT figure at the typical Lürssen length-to-volume ratio implies a vessel in the range of approximately 115 to 125 metres length overall, with a beam likely in the 17-to-19-metre range. The boat is being built at one of the larger Lürssen construction halls — Rendsburg or Bremen-Lemwerder are the candidates given the size.

The naming convention “Project Boardwalk” is a build name and is not necessarily related to the delivery name. Lürssen’s owner clients typically rename their boats at or after delivery using designations entirely unrelated to the build-phase project name.

The smaller pipeline (sub-100-metre)

Beyond the 100-plus-metre projects, Lürssen has a substantial pipeline of 75-to-95-metre builds across its facilities. The yard does not publish a forward delivery schedule, but industry tracking by Boat International and SuperYacht Times suggests approximately six to ten additional projects in this size band at various stages of completion through 2026 and 2027.

The annual delivery cadence across all sizes is approximately five to seven boats — meaning the 2026 delivery year, with at least four 100-plus-metre projects in the candidate list (Jassi, O3, Cosmos, Boardwalk) plus several smaller hulls, would be among the busiest single years in the yard’s modern history.

The strategic picture

Lürssen’s market position at the top of the large-yacht segment is, on the evidence of the current order book, structurally secure. The yard’s order intake from 2018 through 2024 produced the build pipeline that is now delivering through 2026-2028; the yard’s continued order intake through 2025-2026 is producing the pipeline that will deliver through 2029-2031. The capital intensity of the build process — a single 100-plus-metre Lürssen represents approximately two to three years of dedicated construction-hall capacity and several hundred million euros of build cost — creates structural barriers to entry that protect the yard’s competitive position.

The two structural questions for the medium term are (a) whether the methanol-fuel-cell pathway that Cosmos pioneers becomes the standard for the next generation of Lürssen large yachts, and (b) whether the order book continues to absorb at the current cadence as the buyer pool evolves. Both questions are real, both have implications for the broker community and the secondary market, and both will play out over the next three to five years rather than the next twelve months.

For the immediate 2026 picture, the read is straightforward: Lürssen is going to deliver more 100-plus-metre boats this year than any other yard globally, the technical envelope (in particular the Cosmos methanol installation) is being expanded in ways that matter for the long-term direction of the segment, and the yard’s order book through 2028 supports the same delivery cadence into the next several years. The Jassi launch was the visible event of the spring. The rest of the year will see her sister hulls quietly following her into the water, and the cumulative effect by the end of 2026 will be the most active single year in modern Lürssen history.

I will be tracking the trial sequences on O3 and Cosmos in particular through the summer; both projects have implications beyond their individual deliveries. The O3 noise data will tell us whether Lürssen has held its in-house quality envelope at the 110-metre scale; the Cosmos fuel-cell performance data will tell us whether the methanol pathway is operationally credible for the next generation of large-yacht propulsion. Both are the kind of evidence that the next decade of large-yacht commissioning decisions will be made against.

Verification

Filed against the following sources, last verified on June 2, 2026. The desk re-checks the source URLs on every dated modification of the piece.

Standing Questions

How many 100-plus-metre Lürssens are currently in build?: Nine, according to BOATPro data and Boat International's published count. The total includes Jassi (launched February 2026, Q3 delivery), Project O3 (110 metres, in sea trials), Project Cosmos (114.2 metres, fuel-cell-equipped), Project Boardwalk (hull 13797, 5,350 GT, 2026 delivery), and additional hulls in earlier stages that have not been formally published.
What is the methanol fuel-cell installation on Cosmos?: Project Cosmos carries two 500-kilowatt methanol fuel cells supplementing the conventional propulsion package. The fuel cells primarily serve hotel-load generation at anchor — eliminating the need to run auxiliary generators for domestic electrical load. Cosmos is among the first superyachts globally to integrate fuel-cell technology at this scale and is the bellwether for Lürssen's broader pathway toward methanol-augmented propulsion across the larger fleet.
When does each of the named 2026 projects deliver?: Jassi: Q3 2026, per Lürssen's guidance. Project O3: not formally announced; sea trials commenced in early 2026, which typically precedes delivery by three to six months. Project Boardwalk: 2026, per industry tracking. Cosmos: not formally announced post-trial, but the timeline tracks with a 2026 or early 2027 delivery. The yard's owner-confidentiality practice means specific delivery dates often emerge only at or after handover.
Which Lürssen facilities are building which projects?: Lürssen operates four principal facilities: Bremen-Vegesack (the historic main yard), Rendsburg (the largest construction hall, suitable for boats up to approximately 180 metres), Aumund-Lemwerder, and Bremen-Lemwerder. The largest current projects are built primarily at Rendsburg. Jassi was launched at Rendsburg on 6 February 2026; Project Cosmos and the larger pipeline projects are also Rendsburg builds.
How does the Lürssen 2026 pipeline compare to Feadship and Oceanco?: Lürssen's nine 100-plus-metre hulls in build is the largest published pipeline at this size globally. Feadship's order book at 100-plus metres is smaller in absolute numbers but the yard delivers approximately three large yachts annually across all sizes. Oceanco's pipeline includes the 117-metre Bravo Eugenia and several other large projects but at a smaller annual cadence than either Lürssen or Feadship. The combined 100-plus-metre fleet in build across all three yards is in the range of 18 to 22 hulls at any given time.