Multihulls!

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

24 April 2012    0 comments

David Keiper’s Williwaw

Using archival footage, the Int’l Hydrofoil Society has made a short video of David Keiper’s hydrofoil trimaran Williwaw. David built the first flying hydrofoil cruising sailboat in 1970 and subsequently cruised her all over the Pacific. The boat and the voyages are detailed in Keiper’s Hydrofoil Voyager, which is being republished on Amazon this summer.

 

 

 trimarans hydrofoils history

07 March 2012    0 comments

Renaissance of Lady Godiva

The first sail of Lady Godiva in a quarter century. The Richard Newick designed proa was built in Martha’s Vinyard by Rory Nugent, for the 1980 OSTAR. Now owned by Anne and Paul Buttin.

Thanks to Frederic M. and Golden Oldies Multihulls for the submission.

 

 

 proas history

18 February 2012    0 comments

Early Cat Racing in California

Before Steve and Linda Dashew became famous for their innovative blue water cruising yachts, both power and sail, they raced catamarans at the center of the growing multihull movement - Southern California in the early 60’s. Steve has put up a page at Set Sail with some great archival images of the catamaran racing scene back in the day. Rudy Choy, Warren Seaman, Bob Reese, Mickey Munoz, Phil Edwards, they knew and raced them all. Go…

 racing history catamarans

20 January 2012    0 comments

Can your trimaran do this?

“Dr. Frank” Smoot is the ultimate DIY sailor. He began his sailboat design career in 2009 with this and has progressed to this in only two years. His latest is the most ingenious small trimaran I’ve ever seen. If he continues at his Moore’s Law rate of improvement he should be building America’s Cuppers out of plywood/epoxy in about 6 months.

I want to make it clear right up front that I am definitely not a professional boat builder…

 trimarans boatbuilding

11 January 2012    0 comments

The ArcSail Proa

Malcolm Smith always has something really tasty cooking in his workshop. His latest project is a force-balanced design utilizing a ‘ring wing’ that he calls the ArcSail. The concept has huge potential for boats both large and small, and I’m very pleased that Malcolm has opted to share it with us at Proa File -Editor

I have a long time fascination with sailing boat configurations that minimize heeling moment, due to their potential for…

 reports proas

26 November 2011    0 comments

More than zero

Russell Brown has posted a new (Sept. 2011) video to the PT Watercraft Channel on Youtube. It features some excellent sailing footage of his proa Jzerro, as well as some running shots of a cool power outrigger that Russell designed for a friend to use as an aquatic pick up truck in the islands. The outrigger is powered by a 20hp outboard and goes about 18 knots!

 proas power outriggers

15 November 2011    0 comments

Zeppy 3 - Across the Med by Wind Powered Airship

Preparations are underway for a 150 mile journey from southern France to Corsica in a sail balloon. High flyer Stéphane Rousson is planning to pilot Zeppy 3 across a stretch of Mediterranean waters using only the power of the wind and a curved carbon foil based on the chien de mer by Didier Costes.

The 65.6 feet long and 16.4 feet wide Zeppy 3 recently on display at Le Bourget in Paris is filled with 200 cubic meters of helium. An…

 hydrofoils airships

12 November 2011    0 comments

James Wharram Designs Amatasi Launched

The team of James Wharram and Hanneke Boon launched their latest child, Amatasi, on Oct. 12, 2011. The award winning design, a 27’ double canoe is intended to be a practical and sustainable coastal fishing boat. As a proa designer, I certainly appreciate the elegance of the fine canoe sterns on this design, though I do find it somewhat ironic that it embraces the quarter rudder for steering, a design that harkens back to Viking long…

 new designs just launched catamarans

09 November 2011    1 comments

Viking XX - the solar road proa

I’ll bet you didn’t know a proa won second place in the first solar race ever held in the United States! Originally called Sunrayce USA, the first race was organized and sponsored by General Motors in 1990 in an effort to promote automotive engineering and solar energy among college students. The original, 1,800 mi (2,900 km) Sunrayce USA route started at Disney World in Orlando, Florida and ended at the General Motors Technical Center…

 proas history

03 November 2011    0 comments

16m Cruising Proa by James Brett

Aukland based marine designer James Brett as turned out a tantalizing rendering for a proposed 53’ (16.2m) offshore cruising proa.

The bridgedeck cabin includes a double sea berth, full galley and saloon, while the main hull contains two double cabins, and the head. The workings of the boat are the same as my Free Radical design, using the same well proven rig and rudder systems. Construction will be in plywood with ply/balsa laminate…

 proas new designs