Newly new vessel, large solar, lithium batteries, watermaker and parasailor !

Howdoo was purchased and outfitted for an extended family offshore and off‑grid adventure. Plans have changed, so she is now fully prepared and available for your blue‑water journey.

The Nautitech 40 Open is designed for owners who value true sailing performance without sacrificing comfort or safety. Dual helm stations provide excellent visibility and control for both sailing and docking, while the low boom and efficient keels deliver impressive upwind capability. The signature “Open” concept creates a seamless, single‑level living space from helm to cockpit to saloon/galley — safe, social, and ideal for passagemaking and life at anchor.

Howdoo is the desirable Explorer version with the sought‑after owner’s layout, featuring the most recent Millesime interior styling inspired by the award‑winning Nautitech 44. Beyond her well‑selected factory options, she has been upgraded with a professionally designed custom energy system including top‑tier solar, lithium batteries, and inverter/charger components.

Her blue‑water sail suite is equally impressive, featuring a gennaker and Parasailor — a turnkey setup for the ARC Rally and long‑range cruising.

We welcome your inquiries. As experienced Nautitech dealers with extensive international sales and cruising support experience, we are well‑equipped to help you take the next step toward your adventure.

Name................................................... Howdoo

Year........................................................... 2024

Designer.................................... Marc Lombard

LOA............................................ 39’ 3” (12.0m)

LWL............................................... 39’ 2 (11.9m

Beam............................................. 22’7” (6.9m)

Draft............................................... 4’4” (1.32m)

Displacement................................... 18,739 lbs

Ballast.................................................... None !

Sail Area ............................................... 936 ft2

Hull                                                    Fiberglass

Deck................................................. Fiberglass

Steering............................................ Wheel x 2

Keel.............................................................. Fin

Rudder.................................................... Spade

Fuel........................................ 106 gals (400 L)

Water....................................... 158 gals (600L)

Hot Water................................................... Yes

Holding Tank........................................ Yes x 2

CONSTRUCTION

• Vacuum infused technology to guarantee the best strength/weight ratio
• Divinycell PVC closed cell core – no balsa to rot !
• Structural bulkheads laminated to the hull.
• Watertight bulkheads fore and aft in each hull

COCKPIT

• Open plan – with the helms to the quarters (ideal for sailing) there is a larger cockpit than would be expected on a 40’ catamaran.  Perfect view of the sea and sails.
• Open plan – seamless integration with the saloon through the massive cockpit multisegmented door.
• All on one level from helm to galley or saloon.  Clear and safe communication for the whole crew and/or family.
• High quality upholstery throughout – water and UV resistant. Full set of cockpit cushions
• Carbonautica helms !
• Full lighting in the cockpit
• Full cockpit enclosure with doors
• Cockpit shower with hot and cold.

INTERIOR

• From the saloon and galley – 360 degree panoramic view with forward facing chart table.
• Saloon table lowers to form another bed – or a great place to “stand” watch at night !
• Owner’s version – one whole hull dedicated to the owner with a queen bed aft, owner’s desk in the center and a massive shower and toilet are forward.  Separated walk in shower compartment
• The starboard hull has the same large bed aft and other guest cabin forward.  All have great lighting and ventilation.  The guest hull has its own bright and functional bathroom with shower.
• An extra cabin in the starboard forepeak with mattress and upgraded gelcoat finish, ventilation, light and access from the starboard forward cabin.
• Outstanding natural lighting throughout
• High level of interior fit and finish.  In excellent condition.
• Washing machine – 3 kg 
• Blinds on all cabin hull windows
• Upgraded mattresses throughout
• Blackout shades and mosquito nets for all hatches
• Fans throughout the vessel
• Full external sunshades for the saloon with openings for the hatches.  All hatches are flush.
• Upgraded interior lighting including strategic indirect lighting and courtesy lighting

GALLEY

• Great seaworthy galley – large for a 40’ catamaran !
• Seamless connection to the cockpit.
• Lots of surface and storage space.
• ENO LPG 3 burner stove and gourmet oven
• Lots of refrigeration – fridges in the galley (130l) and cockpit (65l) plus the optional 55L freezer

MECHANICAL

• Volvo 30hp engine x 2 – Hours approx. 750hrs
• Folding propellers for fast sailing
• Excellent engine access

ELECTRICAL + PLUMBING

• Professional aftermarket installation of the off-grid ready solar and lithium house bank !
• Large solar panel array – 12 panels for a total of 1452  watts.  Tough+ Black flush panels with 6 x MoonRay 320 MPPT controllers.  Maximum efficiency !
• 8 x Smart Lithium batteries – for 864 amp-hrs
• Victron Quatrro inverter/charger 12/3000 – 3000W
• 2 x Mastervolt Mac Plus 12/12-50 DC to DC chargers
• USB plugs throughout
• LED spreader lights
• Watermaker – 12V Schenker ZEN 50 high efficiency watermaker – 60 lt/hr capacity
• “Quiet Flush” Electric toilets x 2 – freshwater flush for no smells !

INSTRUMENTS

• Full B&G electronics package !
• Each helm has B&G Zeus 9” plus a B&G Triton multifunction display
• A separate B&G Chartplotter at the forward-facing chart table
• B&G Autopilot controllable from either helm or the chart table
• B&G 4G Broadband digital radar
• B&G AIS Receive and Transmit
• B&G VHF radio with DSC and a wireless remote
• Fusion Marine Stereo

SAILS & CANVAS

• Mainsail with custom stackpack and lazy jacks
• Self-tacking jib with furler.
• Gennaker reacher on continuous line furler
• Parasailor – New Gen version with ‘Bluewater’ upgrade and the “Easy Snuffer” and cruising bag.  Perhaps the perfect stree-free way to go downwind !

RIGGING + DECK GEAR

• Upgraded electric winch for the main halyard
• Lewmar Anchor windless with remote and chain counter
• Delta anchor (20kg) with 60m of chain

ADDITIONAL EQUIPMENT

• Tender: Highfield Hypalon 3.1m RHIB (2024)
• Outboard: Suzuki DF15AS (2024)
• Liferafts:  6 pax AND 4 pax with grab bag (2024)
• Tiki Inflatable Gangway/Passerelle
• Full safety equipment including OceanSignal EPIRB3 and 2 x OceanSignal MOB1
• Portable VHF
• 8 x 165N automatic lifevests with tethers (4 un-used !)
• Topomarine rescue binoculars with compass

MAINTENANCE

• Coppercoat antifouling – estimated 10 year life
• Last haul-out: Dec 2025

Listed by Max Shaw at the Port Sidney office of Yacht Sales West