Boat Specifications

MV Moby Duck’s Specifications


MV Moby Duck is a George Buehler designed  Diesel Duck 462.  “46” denotes the length and the “2” denotes that it was built by Seahorse Marine. 

Moby Duck is a steel flybridge motorsailer that represents the safest and “greenest” ocean crossing trawler on the market under 50 feet.  It combines the narrow fuel efficient seaworthy deep keel hull typical of a sailboat with the comfort and convenience of a trawler.  With it’s watertight dogged exterior doors, thick pilothouse windows, deep keel and small pilothouse (excellent a/b ratio) the boat is self righting.  The boat has 5 watertight compartments in addition to the fuel tanks lining the bottom of the hull.  This effectively gives it a double steel bottom.  It has a flushdeck design, meaning no deep cockpit or side decks like the typical trawler sedan style design i.e. Nordhavn, Selene, and Kadey Krogen to catch water.  This is a much more seaworthy design.

The boat can be completely powered by renewable resources.  It’s efficient 24 volt systems (refrigeration, water maker, electronics etc.) and ALL standard LED lighting can be completely powered by the wind generator and solar panels.  The ketch rig and fully feathering underwater pitch adjustable 5 blade prop allow the boat to use the sails as a “get home” device, for stabilization and for significant fuel reduction when motorsailing.  Based on the recent edition of “Passagemaking Under Power”, the bible of the industry, the Duck is the most fuel efficient trawler on the market.  If you do not want to mess with the sails, the boat has a 4045 John Deere continously duty rated 120hp engine with 2000 gallons of fuel and a complete paravane rig for underway and at anchor stabilization.  A Dickinson diesel burning furnace provides heat.

The boat has a 9kw Northern Lights generator to run the washer and dryer, dive compressor, for extra battery charging capacity and to run the air conditioning systems.  


Hull Construction

2” round bar used at the bow and chimes (Plates are then welded to this) Keel shoe 12mm

Keel sides 8mm

Garboard plank 6mm (first steel plates laid up from the keel)

Bottom, topsides and deck 5mm

Pilothouse 4mm

Pilothouse roof and salon top are fiberglass with steel reinforcing to keep the weight down.

Beam: 4.75 m

Draft: 1.85 M

Displacement: 41,000 kg (fully loaded)

Material: Certified steel with five epoxy coatings completely filled and faired



John Deere 4045 Engine 123hp continuous duty engine with keel cooling and wet exhaust

9 kw Northern Lights Generator with wet exhaust and heat exchanger cooling

Two 24V Victron 3000 watt inverter/chargers

Wind Generator

Max Prop Whisper Prop – five blade fully feathering with in the water pitch adjustment

Non folding spare prop

Four 75 watt solar panels

800Ah 24 Volt AGM battery bank

9000 watt isolation transformer

LED lighting throughout including navigation lights and spreader lights

Second high output alternator with Balmar regulator

Very high capacity fuel polishing system

Tankage for 2000 gallons of fuel

Twin Racors with water sensors for main engine

Single Racor with water sensor for generator

Oil Change manifold


Fully faired hull and topsides

 Sprayed in foam insulation

Stidd helm chair in pilothouse and flybridge

built in work bench in engine room

Complete Paravane system for both at anchor and underway stabilization Watertight storage locker on the transom

Three Anchors – Plow, Fortress and Rocna

3/8” all chain rode

Complete Ketch sailing rig with foil type roller furling for use as a get home system, for motorsailing to reduce fuel consumption and as a steadying rig

Additional lead ballast in the keel to compensate for the sailing rig

12mm reinforced commercial rated forward windows

Clearview screen in center window

Flybridge with complete controls and Stidd helm chair

Muir 24v windlass with flybridge, pilothouse and bow controls

Davit system on the transom

Storage/Launching system for 800lb 260hp Supercharged intercooled SeaDoo or RIB Fully faired hull and  topsides

Teak Decks

Stainless steel rails and handholds

24v Bow and stern thruster with wireless remote

Stainless steel bow eye

LED navigation and spreader lights

Oil change manifold

Salt water/fresh water deck washdown pump

Comfort and Convenience

Seperate Washer and Dryer

Combo Propane and Electric oven/stove

Dickinson Diesel Furnace

3 A/C Reverse Cycle Heat units – Pilothouse, Salon, Master stateroom Tecma Heads

Hot/Cold shower on the transom

220v Scuba Diving compressor

24v 200 gallon per day Village Marine watermaker

Full size washer and separate full size dryer

All LED interior lighting

Two undercounter 24v refrigerators- Waeco

Custom built in freezer with 5” insulation


Remote control spotlight

Safety package with life raft and custom mount

Custom interior soft goods, carpets and drapes


2 autopilots with separate pumps for redundancy

Forward scanning sonar

AIS system

Maretron system – mast head weather system, fuel consumption trip computer and GPS

Satellite compass

2 Raymarine Displays with chart plotters and GPS

4 kw Raymarine interfaced Radar

Icom SSB

2 VHFs

Iridium Sat Phone system

Richie compasses

Rudder angle indicators at flybridge and pilothouse helms

Raymarine depth sounder/fish finder