37.7m Heesen Explorer

Est. 2001

UNEXPECTED yacht aerial view showcasing her explorer profile
Technical Specifications

Every Detail,
Measured

37.7 metres of Dutch engineering. Aluminium hull, twin Caterpillars, and 5,500nm range built for crossing oceans.

37.7
mLength Overall
377
GTGross Tonnage
960
hpTotal Power
5,500
nmRange

Principal
Dimensions

Built by Heesen Yachts in 2001 and comprehensively refitted in 2020–2021, UNEXPECTED combines robust explorer capability with refined comfort. Her aluminium hull is engineered for extended ocean passages.

TypeMotor Yacht (Explorer)
ModelDiaship 3700 Explorer
LOA37.69m (123'8")
Beam8.4m (27'7")
Draft2.6m (8'6")
Gross Tonnage377 GT
Hull MaterialAluminium
Year Built2001
Refit2020–2021
BuilderHeesen Yachts
Exterior DesignHeesen
Interior DesignOmega
ClassificationLloyd’s Register (LR)
FlagLuxembourg
StabilisersAt anchor & underway
UNEXPECTED yacht profile view at sea

Twin Caterpillar 3406s propel her across 5,500 nautical miles of open ocean — from the Mediterranean to the polar circles without refuelling.

Power & Range

13
knots max

10 knots at cruising speed for maximum fuel efficiency across trans-oceanic passages

56k
litres fuel

Massive fuel capacity enables extended blue-water voyaging without port dependence

8k
litres fresh water

Ample freshwater stores supplemented by onboard watermakers for full autonomy

Engines2x Caterpillar 3406
Power480 hp each, 960 hp total
Generators2x Northern Lights
Max Speed13 knots
Cruising Speed10 knots
Range5,500 nm
Fuel Capacity56,000 L
Fresh Water8,000 L
UNEXPECTED master cabin with warm contemporary interiors

Master Suite — Full-beam, upper deck

10 guests across
five cabins

UNEXPECTED accommodates 10 guests across five generously appointed staterooms — four double and one twin. A dedicated crew of eight ensures seamless service.

Guests10
Staterooms5
Configuration4 double, 1 twin
Crew8
UNEXPECTED main salon

Main Salon — Interior by Elise Boers

Connected at Sea

Comprehensive communication and entertainment systems ensure guests remain connected and entertained across every ocean.

Wi-FiHigh-speed satellite internet throughout
EntertainmentIntegrated AV system with surround sound
DisplaysFlat-screen TVs in all cabins & saloon
CommunicationsVSAT, VHF, SSB radio, satellite phone
NavigationFull GMDSS-compliant bridge electronics
CCTVOnboard security camera system
UNEXPECTED yacht wheelhouse and bridge electronics

Wheelhouse — Full GMDSS-compliant bridge

Best Power 32–43m

ISS Design & Leadership Awards · 2001

Refit Award

World Superyacht Awards · 2021

Classification

Lloyd’s Register · Maintained

Designed by Omega Architects, engineered by Vripack, and reimagined by Elise Boers — three decades of pedigree in one hull.

UNEXPECTED aerial view showing Omega Architects exterior lines
2001Heesen · Oss, NL
BuilderHeesen Yachts
ExteriorOmega Architects
Interior RefitElise Boers
Naval ArchitectureVripack
ClassificationLloyd's Register
FlagLuxembourg

Discover Her
Design & Build
Heritage

From Heesen's Dutch shipyard to Omega Architects' visionary exterior and Elise Boers' refined refit interiors — learn the story behind UNEXPECTED.

Design & Build