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The 31m Brigantine Schooner

"Komodo Privateer"

  31m Komodo Privateer - Kasten Marine Design, Inc.
Aft Perspective | Forward Perspective | Side Perspective
Six Cabin Layout:  Deck Plan & Interior Profile  |  Six Cabin Plan
Five Cabin Layout:  Deck Plan  |  Five Cabin Plan & Interior Profle
Eight Cabin Dive Boat Layout:  Deck Plan  |  Eight Cabin Plan

Copyright 2015 Michael Kasten

General Concept

This privateer-style schooner is intended for construction in Indonesia using top quality tropical hardwoods.  The concept has been to create a vessel that could accommodate up to twelve charter guests plus twelve crew for charters in Indonesia and South East Asia, as well as to have  a vessel suited to worldwide cruising. The goal has been to provide all the amenities of a well equipped charter vessel that is fully capable as a motor-sailor, while also performing exceptionally well as a pure sailing vessel.  We have specified modern materials wherever possible to provide a rig that reflects a classic schooner / brigantine heritage. 

With the 'privateer' hull type, six luxury cabins are provided within a smaller overall vessel size than would be required using a typical Pinisi or KLM hull type, all without having to reduce the size of the guest cabins.  The guest cabins have been located amidships, with the engine room moved aft; the crew cabins located forward; and the captain and engineer / mate in their own cabins on deck.  As compared with our Indonesian Pinisi designs there is less rake to the stem and the overhang aft is very modest.  These changes allow the overall size to be reduced from around 37 meters and 350 metric tons, to 31 meters length on deck and 244 metric tons.  In all, a much more economical vessel to build, with no reduction in the accommodation space. 

Particulars are:



The construction methods used in South Sulawesi are plank-on-frame using tropical hardwood.  Frames are sawn futtocks which are scarphed together rather than lying side by side.  By tradition the planks are erected prior to the frames being installed, therefore all planks are edge fastened using a combination of hardwood dowels and galvanized drifts.  Please see our Pinisi History page for more information about the construction methods used in Indonesia, and our Pinisi Building page for our recommended path to achieve the highest quality.


The rig is a traditional stays'l schooner / brigantine with gaff main. Light weather sails include a main gaff tops'l, two square foretops'ls, and a large lower course for light winds.  This kind of rig is able to provide plenty of sail area for fast passage making without becoming too tall, and the square sails perform exceedingly well off the wind.  Although it is common for the Indonesian Pinisi sailing rigs to use a standing gaff with the sail brailled to the mast, we have instead used a standard Western gaff so that the sail and the gaff can be raised and lowered together.  This provides much greater flexibility in reefing, less windage, and in general far easier sail handling.

As a result of the vessel's heavy displacement it is able to carry all steel spars and yards, allowing more freedom with regard to the rig design and size.  Steel tube is no heavier than tropical hardwood for masts and spars.  All welded tube and fittings vastly simplifies the rig construction while dramatically increasing the strength and longevity of the rig. 

Six Cabin Layout

EXTERIOR: The exterior configuration can be seen in the sail plan above and in the layout images below.  There is a raised aft deck surrounded by a tall bulwark and wrap-around seating.   On the forward deck there is a seating pod with a table for dining on deck.  The seating pod can be converted into an Asian seating platform for informal lounging on deck, or for sleeping under the stars.  Elsewhere on the foredeck there is ample space for lounge chairs, and if dive operations are anticipated, a pair of 'dive kiosks' can be placed on the fore deck, located in place of the life raft cannisters.

INTERIOR ON DECK:  The raised part of the deck house contains the galley, with the bridge in its forward end.  The on-deck location for the galley was chosen in order to allow the guests to participate in gourmet cooking adventures - potentially a central feature for charters.  With most of the food storage located below within a dedicated pantry, the galley is reserved for cooking and entertainment.  Wrap-around counters provide ample space for food preparation.  An additional food preparation area is located right aft of the galley, which can function as a service area for the aft seating, or as a BBQ and fish cleaning area, or it can simply be used as a wet bar. 

 Accessible from the galley as well as from the starb'd side-deck is a stairway leading below aft, providing access to the engine room as well as to a large aft guest cabin / VIP suite / owner's cabin.  In the deck house right forward of the bridge are a pair of cabins for the captain and the mate / chief engineer. 

Forward of that there is a comfortable lounge / dining room.   Wrap-around lounge areas are to port and starb'd, and a formal dining table is located forward.  A stairway on center leads down to the guest hallway, providing ready access to the forward guest cabins.  The two staircases descending from the lounge have between them a long table extending forward and aft of the stairwell.  The table creates headroom for the stairwell, and thus becomes a 'feature' within the lounge, with seating all around.  The table also provides a service area, and in the aft end a media center.

31m Komodo Privateer - Kasten Marine Design, Inc.

Click for Larger Image

INTERIOR BELOW:   In addition to the captain and mate / engineer cabins on deck, ten crew are accommodated in two cabins forward.  The crew cabins are accessed directly via a scuttle on the foredeck, as well as from the guest hallway. 

Aft of the crew cabins are four deluxe en-suite guest cabins plus one V.I.P cabin, all of which are accessed via the stairway leading below from within the on-deck lounge. Each guest suite has its own private head and shower, a desk, a couch, a wardrobe, and ample storage.

Aft of the guest cabins on center is the engine room containing the propulsion engine and two primary generators, pumps, filters, fuel manifold, etc.  Outboard of the engine room to port is a machinery space, which contains the air conditioning chiller, dive air compressor, water maker pump, hot water heater, and a 'pony' generator to run only the refrigeration, basic lighting, and to keep the house batteries charged when there are no guests aboard.  Outboard of the engine room to starb'd is a cool storage room, which contains a large deep freeze and generous cooled storage for produce and other food stores.

Aft of the engine room is an athwartships hallway, which provides access from on deck and from the galley to the engine room, and to the owner's suite aft.  Outboard of this hallway is a head to port and shower to starb'd accessed from the owner's suite.

31m Komodo Privateer - Kasten Marine Design, Inc.
Click for Larger Image

Five Cabin Layout

INTERIOR ON DECK:  If we elect to focus the vessel's primary operations on high-end dive charters, we can locate the galley below so that the aft part of the deck house can become a dedicated dive shop. In this location the dive shop is sufficiently large to contain a storage / filling station for 24 tanks; a repair station; and all of the shared dive gear.  The aft deck becomes a staging area for dive operations complete with briefing area and washdown showers with direct access to the dive shop.  From within the dive shop access is provided to the galley below and to the starb'd side deck.

31m Komodo Privateer - Kasten Marine Design, Inc.
Click for Larger Images

INTERIOR BELOW:  Without changing any of the cabins forward of the engine room, we have simply eliminated the grand suite aft in favor of placing the galley there instead.  This allows the galley to be quite large, with its own ready access to the cool room / pantry below to starb'd of the engine room.  The drawing below shows how that would work...

31m Komodo Privateer - Kasten Marine Design, Inc.
Click for Larger Image

Eight Cabin Layout

INTERIOR LAYOUT ON DECK:  Keeping the galley located below, this leaves the aft part of the on-deck house for use as a dedicated dive shop as shown below, very much the same as with the 'five cabin' layout.

31m Komodo Privateer - Kasten Marine Design, Inc.
Click for Larger Images

INTERIOR BELOW:  The interior length that is available for the guest cabins forward of the engine room is twelve meters.  If that length were divided into fourths it would be possible to achieve eight cabins forward, having dimensions of roughly 3 meters by 4 meters each.  In all, this would provide private sleeping cabins for sixteen guests, each cabin having a private en-suite head and shower.  For high end charters this is a bit crowded.  For charters focused on diving however, it may be just the right arrangement.   In the image below, we can see how that would work...

31m Komodo Privateer - Kasten Marine Design, Inc.
Click for Larger Image


That there are at least three different but equally viable cabin layout options for this design illustrates the flexibility provided by the "Privateer" hull form.  If one were to mix and match among the above options or change the guest suite layout there are a number of other layouts that could be achieved, depending on the kind of charter guest being considered.

The 31m Komodo Privateer is a larger version of our 17m Flores Privateer and 20m Sulawesi Privateer designs, also intended for construction in Indonesia.  For the 31m Komodo Privateer the size has been increased considerably for the sake of carrying more charter guests in greater comfort.  

As an extension of this design series, we developed a preliminary design for a larger version called the 45m Kalimantan Privateer. This size allows the vessel to have five much larger ultra luxurious guest suites, or alternately to accommodate up to twenty guests.  By comparison, a standard Pinisi hull with sharply raked stem and stern would have to be approximately 10 to 15% larger, or roughly 50 meters or so length on deck. 

An interesting article on our work with the wooden vessels of Indonesia appeared in the New York Times, called The Traditional Pinisi - And Then Some.  For a taste of what is possible with these craft, please see our Dunia Baru web page where you will find several outstanding as-built images.

For more information about these craft, please see the following links.  Please also feel free to contact me with questions you may have about building a wood boat like this in such an exotic location...!

31m Komodo Privateer Schooner - Kasten Marine Design, Inc.
   Click for Larger Image


Our articles about building an Indonesian Pinisi or KLM:
Pinisi History  |  Pinisi Building  |  The Ultimate Charter Pinisi
Sailing vs. KLM Types  |  A Cargo Pinisi as a Yacht...?

Pinisi and KLM designs that we have created or have planned:
30m Pinisi, DATU BUA  |  36m Pinisi, SILOLONA
38m Pinisi, AMANDIRA  |  50m Sailing Pinisi

27m DIVE Charter KLM  |  30m Charter KLM  |  33m Charter KLM
36m KLM, DUNIA BARU  |  40m Charter KLM  |  50m Charter KLM

Descriptions of our adventures with these boats:
Silolona "Homecoming"  |  Indonesia Boatbuilding Images

Five Schooners and Two Arabian Dhows Suited to Building in Indonesia
17m Flores Privateer  |  20m Sulawesi Privateer  |  31m Komodo Privateer
36m Tern Schooner  |  36m Lombok Privateer  |  45m Kalimantan Privateer

22m Arabian Baghala  |  36m Arabian Baghala

Two junk rigged KLM types for construction in steel:
25m Lady Destiny  |  55m Lady Destiny