Multihulls!

Catamarans, trimarans and proas - PROA FILE is devoted to design, experimenting, sailing, history and generally messing about with multihulls. Join us!

21 February 2015    1 comments

Conquered Sun

The 41’ Invictus is a nice example of a ‘70’s era multihull that was moored at Shilshole Marina in Seattle for many years. It was actively campaigned in local races, with the sugar scoop transom extension being a later mod for more speed. Sadly, it appears that Invictus has run into some hard times and is now being offered for scrap.

Even though the boat is old and apparently decrepit, it has nice bones with a fine hull, high wing... Read on »

 trimarans history dock ranger

Trimaran Invictus

04 February 2015    0 comments

Upstaged

Multihull designer Bernd Kohler has thus far been solely devoted to catamarans, but his latest design is for a simple small trimaran, logically named LITTLE TRI. I like Bernd’s work because he places simplicity of build and economy high on the list of design priorities, and yet still manages to come up with appealing boats. His latest is a classic example, where he sidesteps the usual trimaran complexities by employing a readily... Read on »

 trimarans new designs

Little Tri on stage

30 January 2015    1 comments

R2AK - January Update

Port Townsend’s Race to Alaska made it on the cover of the Rolling Stone Seattle Times this week. It features Seattle’s own Thomas Nielson and Scott Veirs, who will be entering a Hitia 17 with crab claw rig in the event. Both Tom and Scott are experienced watermen, they and their rugged little Wharram will make a formidable team.

However, they are just the tip of the local multihull iceberg forming around the race. Edensaw Woods... Read on »

 racing

R2ak-veirs-nielson

17 January 2015    1 comments

Trailerable Brine Shrimp in California

Though it doesn’t say in the ad, this 23’ folding catamaran is a Thomas Firth Jones designed Brine Shrimp. Built in 2000, the boat appears a bit rough but the nice thing about plywood boats is that there isn’t anything that a little time and basic wood shop skills can’t fix. The sale includes trailer, sails and 4 hp outboard (that needs a tune up). Find it here on Craigslist in Vallejo, CA for $6000.

From the designer:

Brine Shrimp... Read on »

 dock ranger catamarans

Brineshrimp1

01 January 2015    27 comments

Chetzemoka - a multi-purpose outrigger for the Salish Sea

Chetzemoka is the latest draft on an idea that has been slowly brewing for some time - a small multi-purpose cruiser/cargo/expedition vessel designed for the Salish Sea. It’s a motor sailor, because the wind rarely blows when you’d like it to in these parts, but you still want to be getting where you’re going. A 15-25 hp outboard will get the job done, with some wind assist via the rig.

Initial inspiration comes from the... Read on »

 trimarans new designs

Chetzemoka

17 December 2014    0 comments

The Sultans of Wing

Just to prove that we aren’t complete small boat snobs over here at Proa File, here’s a yacht that’s well over our usual cut-off in length and opulence. This is the sort of thing that Nigel Irens Design has been up to lately, and we have to say it: the A-65 is probably the loveliest luxury sailing catamaran launched since the turn of the century.

The challenging brief from a client in the Emirates was to design a truly... Read on »

 designers catamarans

A-65

14 December 2014    0 comments

America’s Cup Trickle Down

The new WindRider Rave V hydrofoil trimaran

WindRider has announced that it is re-entering the sailing hydrofoil market with a new 17’ design that is aimed at overcoming some of the chief limitations of the type, such as being a pain in the ass to trailer, rig, beach and sail.

WindRider and their design partners developed the original concept of bringing foiling or “flying on the water” to the everyday sailor back in 1998, well... Read on »

 trimarans new designs hydrofoils

Rave V

13 December 2014    1 comments

The Launch of Arpex

After a seven year build, Peter Mirow has launched ARPEX, his self designed and built 30’ tacking outrigger in Rio de Janiero. We’ve followed his progress over the years on his blog, and we’re nearly as happy as he is to see the great day finally arrive. Cheers, and congratulations!

Great day! What else can a man want, then to design, and build a boat, and see it floating on its lines? Hahahaha!

See more pics of the launch... Read on »

 outriggers just launched

The launch

12 December 2014    2 comments

The Crab Claw Comeback

The crab claw as an ideal wind-electric hybrid yacht rig

Way back around the turn of the century, there was a lot of excitement about the potential of the native Pacific island canoe rig, often called the “crab claw” sail, so called because the plan form resembles the claw of a crab. The rig has some serious advantages, see here and here, but also some serious limitations, the primary one being that it is not as weatherly as a... Read on »

 new designs hybrid power

Motorsailor with delta wing sail rig

11 December 2014    3 comments

Water Bug - an SUV catamaran powerboat

The Water Bug is an experimental catamaran motorboat designed and built by Russell Brown of Port Townsend Watercraft. It uses a pair of Tornado catamaran hulls as the base, and is extremely efficient, getting 20mpg at 11 knots, while loaded AND pulling a dinghy. Russell uses it like a water-born SUV - hauling stuff and going camping. The “car” is plywood/epoxy construction, it was drawn on the back of an envelope so there are no plans.... Read on »

 smallcraft power catamarans

Waterbug