CASTLEFINN

LENGTH

36.00 M (118.1 ft)

BEAM

8.00 M (26.2 ft)

DRAFT

2.05 M (6.7 ft)

DISPLACEMENT

207 TONS

ENGINE

2x Caterpillar C18

SPEED

17 Knots

MULDER THIRTYSIX

GENERAL

Year: 2025

Hull material: Aluminium hull and superstructure

Hull shape: Fast Displacement Hull Form (FDHF)

Displacement: 207 TONS @ half load

Gross tonnage: 296 GT @ half load

Cruising speed: 15 KNOTS

Top speed: 17 KNOTS @ half load

Naval architect: Van Oossanen Naval Architects

Exterior design: Claydon Reeves Design Studio

Interior design: Roelfien Vos Design

Flag: Cayman Islands, REG Yacht Code

Classification:

ABS A1, Commercial Yachting Service
AMS (Unrestricted Navigation), TIER III, MCA

Tender / Toys:

Williams 625
2 x Seadoo GTX 170

Passarelle: Hydraulically operated telescopic Hydromar

Cabins: 5

Bathrooms: 5

Dayhead: 1

Guests: 10

Crew: 6

TECHNICAL

Engine(s): 2x Caterpillar C18

Gearboxes: ZF 2300, reduction 4:1

Propulsion type: Fixed propellors

Diesel capacity: 28.600 L (7,555 gal)

Fresh water capacity: 5.700 L (1,505 gal)

Grey water capacity: 2.600 L (687 gal)

Black water capacity: 1.800 L (475 gal)

Dirty oil tank: 600 L (158 gal)

Sludge tank: 600 L (158 gal)

Bow thruster:

85 HP Hydraulically driven

Stern thruster:

85 HP Hydraulically driven

Stabilizers:

CMC Zero-Speed fins

Anchor(s): 2x 167 KG SHHP

Anchor chain(s): 2x 200 M, galvanised U-2 Stud link

Anchor winches: Hydraulic, Maxwell type 6000 VWC

Watermaker: Hem H25F2

Sewage system: Hamann waste water processing system

Fuel filter seperator: CC Jensen 785L / HOUR

ELECTRICAL

Generator(s): Zenoro John Deere Marine engine 50 Hz 1.500 RPM 80 KvA

Electrical system: 230/400V 50Hz

Isolation transformer: Marpower SPC-II Hybrid 80kW/100kVA

Shore power convertor(s):

Marpower SPC-II Hybrid 80kW/100kVA

Shore power connection: Three phase

Navigation:

Furuno

Heating system: Heinen & Hopman

Airconditioning: Heinen & Hopman

Boiler(s): 2x 250 L

EXTERIOR

Options / other:

Spa-pool – For seven persons
High-end audio system

INTERIOR

Audio / video:

Starlink
High quality equipment

Built for Generations, Designed for Moments

The 2025 Mulder ThirtySix – CASTLEFINN is a fine example of Mulder Shipyard’s dedication to timeless design and superior craftsmanship. Measuring 36.00 M, this yacht embodies the quality and attention to detail that have defined Mulder since its founding in 1938.

With a unique history and carefully crafted design, she remains a valued part of our fleet. Built to meet the specific wishes of her original owner, she reflects the individuality and bespoke nature that characterize every Mulder yacht.

If you have any additional information, photographs, or stories about this yacht, we’d love to hear from you to further celebrate its legacy.