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The 46' Trawler Yacht


The 46 Trawler Yacht - GULLIVER - Kasten Marine Design, Inc.

Gulliver Profile | Gulliver Interior | Gulliver Structure | Perspective Forward | Perspective Aft
Here are a few images from Virtual Sailor showing Gulliver in the Aegean:

GULLIVER in Greece - Click for Larger Image GULLIVER in Turkey - Click for Larger Image
Gulliver in Greece | Gulliver in Turkey

Copyright 2002 - 2013 Michael Kasten

General Concept and Materials

The intent of this design is safe long range offshore voyaging under power, but within a comfortable live-aboard yacht. The layout is optimum for a couple with occasional guests.


Hull construction is mild steel. The pilot house is aluminum, joined to the hull with a bi-metal strip that is welded on both sides. All aluminum construction is equally possible.

Hull Form

The hull is similar to Pacific Northwest commercial fishing vessels, but with finer form. Deck structures have been kept low to provide a low center of gravity. With a conservative amount of beam and raised fore deck, a comfortable motion and an exceptional range of positive stability are assured.

Paravanes are provided for roll attenuation both at sea and at anchor. See our web article on Roll Attenuation Strategies for more information.


Intended for an economical circumnavigation the engine is a 4 cylinder Lugger or John Deere diesel mated to a Sabb Controllable Pitch gear and propeller. In Norway, on 3,000 miles of nearly the most tortured coast in the world, Sabb equipment is chosen by the majority of commercial boats. Sabb offers several CP gears complete with propeller and shaft assembly and will ship anywhere in the world for a very reasonable cost.


The interior arrangement is intended to provide comfortable cruising for two people with the addition of a couple as occasional guests. The arrangement would also allow a skipper to charter the boat, accommodating the guests forward.

The long forward cabin extends from the forward bulkhead all the way aft to the wheel house. The cabin top extends full width for its entire length. This provides the greatest amount of interior space, the largest open deck area, the greatest freeboard and the most reserve stability.

At the forward end of this cabin is the owner's stateroom with a double berth forward and a bureau on each side. Aft of the fore cabin to port are a desk / computer area, and to starb'd are a head and shower.

Aft of the head is the saloon, with a pilot berth / settee both to port and starb'd. Aft of the saloon area to starb'd is the galley, and to port is a companionway passage up and aft into the pilot house. Outboard to port of the companionway passage is a large bureau / hanging locker / work table, intended to also house a small combination washer / dryer.

On center in the galley is... a large engine box! Why there? Well, why not. The enclosure is heavily sound-proofed, making this a practical location for the engine. With easily removed or lifted panels, 100% service access is provided. Not everyone can boast an actual saloon and galley in the engine room...!

Wheel House

The wheel house is located aft of the galley / engine area. The aft wheel house location has the best motion for piloting, the best view of the ship, and the most safe location for the wheel house structure. Inside the wheel house is a wrap-around settee aft, a wheel to starb'd and an entry below to port. There is an ample electronics area forward of the wheel that is enclosed by the forward wheel house windows. Exit doors provide access to both port and starb'd side decks.

Deck Areas

Aft of the wheel house is a covered aft deck - a protected fishing / observation area at sea, and a 'veranda' when in port. The aft deck can be enclosed by a screen or a clear dodger. Shore boat storage is on top of the pilot house. An outboard motor and gas cans are stowed in the cockpit seat locker. Access to the top of the pilot house is provided through a hatch above the aft seat. The foredeck remains clear except for two sky-lights, a few cleats and bitts, and the windlass / anchor arrangement. A good sun bathing spot...!

Get-home Rig...?

The image below is a quick preliminary composite of a possible get-home sail rig for Gulliver... This type of sail rig would not require any changes to the layout, the ballast nor the aft mast. There would be a tabernacle to hold the fore mast and to allow the mast to be easily lowered.

Why the junk rig...? In my view, the junk rig is a natural for a power vessel, and for several reasons. See our Junk Rig web page for more information.

Design Genesis

As with our other designs in this series, the hull form for the Gulliver has been adapted from real trawlers - US West Coast fishing vessels which have to operate in all weathers - including in the Gulf of Alaska, a place where the ocean is... well, not so nice. Our aim has been to retain the excellent sea keeping qualities of those working craft, and to refine their lines into 'yacht' form to achieve a more easily driven hull with relatively light displacement. See the following links for vessels in the Gulliver / Greatheart series...

Greatheart 36 | Vagabond 36 | Gulliver 46 | Greatheart 48 | Greatheart 54
Greatheart 60 | Swallow's Nest 60 | Swallowtail 60 | Braveheart 53 | Braveheart 63 | Swallows Nest 70

In order to achieve a proportionately longer waterline and more interior space without increasing boat length, we developed another series of designs based on the same hull form, but with a more upright stem and transom. Combined, this reduces the overhangs and increases the WL length to gain more interior space with less overall hull length. Check out the following links for boats in the Vagabond series...

Vagrant 49 | Vagrant 70 | Vagabond 50 | Voyager 52 | Valdemar 53 | Valdemar 70

46' Trawler Yacht - GULLIVER - Kasten Marine Design, Inc.

For more information on this or other designs, please inquire.