04 December 2010     0 comments

Hypersprite 5.5 Sailing Transport

This design was inspired by the Delta-7 Aethersprite-class light interceptor that Obi Wan flies on a reconnaissance mission to the planet Kamino in Episode II: Attack of the Clones. The Delta 7 is a small, one-man starfighter not capable of light speed, so to travel great distances it uses a Syluire-31 hyperdrive ring. Obi Wan docks into the hyperdrive ring and zips out to Kamino, where once safely in orbit, he undocks and descends…

 concepts / catamarans 

Hypersprite 5.5 plan

10 June 2010     0 comments

Provocative proa art

There are no more audacious multihull sailors, designers and builders on the planet than the French. The modern, post-war multihull boom may have begun in the U.S., but in 1936, it was Frenchmen Eric de Bisschop and Joseph Tatiboet who first pitched a tent on a secluded, shady spot of Waikiki Beach, to build Kaimiloa. The “mad Frenchmen” sailed safely back to France, via the Cape of Good Hope, and the French have been mad about…

 proas / concepts 

Kerg 1

03 October 2009     0 comments

Beach Cruiser reloaded

The return of Beach Cruiser - in 3D!

The Beach Cruiser sketch from last March has progressed into a 3D model - my first 3D project in a long while - a good vehicle for relearning the ropes. To recap, Beach Cruiser is intended to be a multihull version of the popular “open boat” style of camping cruiser. Over the years, small cats have become somewhat the victims of their own success - evolving into pure race boats. It’s a bit of a…

 concepts / catamarans 


09 March 2009     0 comments

Old School

A 19 foot beach cruising catamaran

Beach cruisers are single gear bicycles with upright posture and balloon tires that put more emphasis on ride comfort and style than ultimate performance - the alternative to the ubiquitous road and mountain bikes.  In that spirit, I present Beach Cruiser, the alternative beach cat. 19’ LOA by 8’-6” beam, Beach Cruiser fits nicely on any beach cat trailer. The sail area of 220 sq. ft. also means that…

 concepts / catamarans 

Beach cruiser

10 January 2009     0 comments

Rozinante 2

A considerable amount of credit/blame for my love of small boats goes to L. Francis Herreshoff and his book ‘The Compleat Cruiser’. I fell in love with his ideas about a simple yet refined cruising lifestyle, epitomized by Mr. Weldon and his whaleboat type ketch - Rozinante. Rozinante is beautiful, fast, seaworthy and handy, and I was musing recently about how a proa version of Rozinante might work out.

Rozinante Il is a mono-proa - a…

 proas / concepts 

Rozinante 2 sailplan

05 September 2008     0 comments

Changeup camp cruiser catamaran

The slider is the best pitch in baseball.—Ted Williams

Changeup is a riff on Ray Aldridge’s brilliant beach cruising cat, Slider. I hesitated to publish these drawings at first, since they are an obvious take-off on Ray’s design, but imitation is the sincerest form of flattery, so I hope Ray takes them in the spirit intended, which is one of respectful admiration.

Slider answers almost every single desire of my beach cruiser…

 concepts / catamarans 

Changeup side profile

16 May 2008     0 comments

Teh Pookie

Back to the Future. A collaboration with Jim Shanahan.

Tepukai are singularly amazing proas from the Santa Cruz Islands that take the usual South Pacific parsimony with building materials to the nth degree. The boats stretch out over the water’s surface like a gigantic water spider, covering the most area with the minimum mass. Tepukai employ slender, submersible wave-piercing hulls, centrally located mass for low pitching moments,…

 proas / concepts 


13 March 2008     0 comments

Samwise part 3

The third (and hopefully final) iteration of Samwise the micro-cruising proa.

Some fairly dramatic changes since Samwise Part 2 (Part 1 is here). The biggest change is that Sam is now a balls out Atlantic proa - rig placed in the windward hull. No faux Pacific, “weight to windward” sham, an Atlantic proa is Sam I am.

LOA: 20’
BOA: 8’ - 12’
Windward hull beam: 2’-10”
SA: 180 sq. ft.
Mast height: 16’-2”
Rig height: 19’

Placing the…

 proas / concepts 

Sam 20 sailplan

24 January 2008     0 comments

Samwise part 2

There and back again, again.

I fleshed out a few scale drawings of Samwise last week. In keeping with the minimalist theme, I’m doing the minimum of calculations. As you can see, proportions have altered a bit - but form follows function. The goal was to make the hull sides from straight ripped ply - 2’ wide - easy as pie. The straight ply goal meant the crossbeams buried in the hulls had to go, so now they’re lashed or bolted to the…

 proas / concepts 

Samwise windward profile

07 December 2007     0 comments

Samwise - there and back again

Samwise is a minimalist cruising proa, which is really the only kind of proa there should be, IMHO. The only thing not minimal is the performance - the proa’s raison d’etre. The basic idea is reliable and cozy camp cruising in the Pacific NW - where the water is generally frigid and the air is generally tolerable.

Sam’s godfathers include Matt Layden’s Paradox and Rob Denney’s Harry, while a host of uncles include Phil Bolger, Peter…

 proas / concepts