Hydrofoils

03 March 2017    1 comments

Almost Hit a Tree

BROOMSTICK is a 15’ home-designed & built hydrofoil trimaran by Doug Halsey. It first sailed as a foiler in 2004 and has been refined gradually each year since then (only sailing a handful of times per year). Although it wasn’t intended to be the ultimate in speed, it routinely exceeds 20 knots, with a lifetime best speed of 28.7 knots. Box section hulls, round aluminum tube beams, deep-V hydrofoils and used beach cat sails - what’s…

 hydrofoils / boatbuilding 

Broomstick

27 October 2016    0 comments

I want to believe

Dave and Steve Clark talk about their new UFO foiler destined for production. Dave demonstrates the launch procedure (piece of cake), and takes the boat out for a quick flight. The boat is designed to remove the “user hostility” from the Moth foiler sailing experience, thus broadening the appeal of hydrofoil sailing.

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 new designs / hydrofoils 

UFO

12 May 2016    1 comments

Walk on Water

I had no idea this was even possible. Kai Lenny SUP downwind hydro-foiling. A hoverboard that works over water!

 

 hydrofoils 

Sup-hydrofoil

15 April 2015    0 comments

The Foil Alphabet

Rudders and centerboards with hydrofoils, profiled arms, wing masts… after the 34th America’s cup, it would be easy to say “we are in the age of wings”. And now it’s not only on multihulls but also on monohulls!

However, wing masts and hydrofoils on sailboats are not a new invention. In 1913 Alexander Graham Bell and Casey Baldwin built Nancy, a hydrofoil sailing model. In 1938, Robert Rowe Gilruth, the “father of America’s human…

 hydrofoils 

The Foil Alphabet

09 April 2015    4 comments

The Trickle Down Effect

I’ve had an interest in hydrofoil sailboats ever since I ever heard about them, when I found ‘The 40-Knot Sailboat’ by Bernard Smith in the Kirkland Public Library as a teenager, which I must have checked out a dozen times. A few years later I was glancing through the Whole Earth Catalog at the neighbors and I saw an entry for ‘Flying Hydrofoils’, published by the AYRS in 1970, which I promptly ordered. So it has been with considerable…

 hydrofoils / history 

Gunboat G4

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…

 trimarans / new designs / hydrofoils 

Rave V

12 August 2014    0 comments

Alain Thebault Interview

This is a nice interview of L’Hydroptere skipper Alain Thebault by CNET’s Molly Wood. L’Hydroptere is a member of a very exclusive club: “Former holders of the world sailing speed record”. Unlike most record holders, the flying hydrofoil trimaran is not limited to shallow and waveless speed traps, but is open ocean capable. Highlights include photos of Alain’s early scale models that he built as a teenager.

This post is also a test of…

 trimarans / hydrofoils 

Hydroptere

11 July 2014    1 comments

Hydrofoil Cruiser

Paul Bieker has announced this interesting new design on the Biekerboats blog. The foils resemble what is quickly becoming the standard on high performance race boats such as the A-class. We don’t think the B53 is intended to completely fly both hulls with this set up - the foils reduce displacement and provide dynamic stability.

Introducing the B53 high-performance cruising cat, just beginning construction at Gold Coast Yachts in the…

 new designs / hydrofoils / catamarans 

B53 cruising foiler

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 

Williwaw

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 

Zeppy 3