50-Metre Axe-Bow Support Vessel — Two Roles, One Proven Hull
164 ft (50.0 m) · Damen Sea Axe design, built in Brazil 2012 · RINA class, in service
Built to the Damen Sea Axe hull form with the bow widened — more internal volume, and spray thrown clear of the hull, the known weakness of a standard axe bow in a seaway.
Manning, survey and berthing stay simple. Commercial steel with yacht-friendly numbers.
20 knots maximum, 15 knots in transit — she keeps pace with a mother yacht. 70 days’ endurance on 178 m³ of fuel.
RINA class and working today. No reactivation, no lay-up recovery — the budget goes into the conversion, not into bringing her back.
A hull of this type, at this entry price, leaves the larger share of the budget for the conversion itself.
The working vessel as she is, morphing into each of the two conversion concepts.
The Yacht Channel · Project Cutlass — 50 m axe-bow: yacht support or expedition yacht
Same hull, same machinery, two missions.



AI visualisations on the actual vessel — concept only, not design drawings.
A 20 × 7.7 m aft deck rated to 250 tonnes, DP1, and the tankage to work a long way from port.
The aft deck takes the large tender, toys, a submersible and dive equipment off the mother yacht. 20 knots keeps her alongside; ten cabins house crew, dive and guest staff; DP1 and the crane are already fitted.
A 10 m beam, 178 m³ of fuel, 75 m³ of fresh water plus a watermaker, 70 days’ endurance. The aft deck becomes helideck, tender garage and beach club; the superstructure is rebuilt as owner and guest accommodation.


The detailed specification, class-approved general arrangement, asking position and conversion outline for either role are released to registered principals. Register your brief — it goes straight to Paul M. Madden.
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| Design / Build | Damen Sea Axe hull form, bow widened · built in Brazil |
|---|---|
| Built / Refurbished | 2012 / 2018 |
| LOA / Beam / Draught | 50.00 m × 10.00 m × 2.38 m |
| Hull | Steel |
| Gross Tonnage | 492 GT |
| Class | RINA C✠, ✠AUT-UMS |
| Main Engines | 4 × Cummins KTA50-M2 · 4 × fixed-pitch propellers |
| Speed | 20 kn max · 15 kn transit · 6 kn economical |
| Endurance | 70 days |
| Generators | 2 × 175 kVA |
| Thrusters / DP | 2 × 200 HP bow thrusters · DP1 |
| Fuel / Fresh Water | 177.7 m³ / 74.9 m³ · 5.3 m³/day watermaker |
| Aft Deck | 20.0 × 7.7 m, 250 t capacity · 2 t crane |
| Accommodation | 10 cabins (7 double, 3 single) |
| Communications | GMDSS A1–A3 · V-SAT · Iridium |
Particulars per the owner’s specification and Xplorer Yachts’ file; to be confirmed at pre-purchase survey.
Call or register at XplorerYachts.com
No reactivation cost
Conversion outline for either