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This profile was last updated on 11/6/13  and contains information from public web pages.

Featuring IHS Member

Email: t***@***.org
International Hydrofoil Society
Po Box 51
Cabin John, Maryland 20818
United States

 
11 Total References
Web References
International Hydrofoil Society (IHS) Directors
www.foils.org, 6 Nov 2013 [cached]
As a friend of Harry Larsen (IHS), Ray has had the good fortune to enjoy many flights aboard Harry's hydrodynamically and electronically sophisticated hydrofoil, Talaria IV.
Hydrofoil Message: Chats, Info Sharing, Networking Results
www.foils.org, 6 Nov 2013 [cached]
Harry has offered his design to others as well as has offered his boat TALARIA III with no takers so far. He may be able to offer some insight from his experience as to why the lack of wider interest. As to the subject of an Automatic Control System, Harry Larsen gives info on his ACS on his site.
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Take at look at the following website about TALARIA III, which is a fully submerged hydrofoil design with automatic control system: http://mysite.verizon.net/res6pe7p/index.htm If that corresponds with your interest, then contact Harry Larsen at talaria@foils.org.
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For hydrofoilers in the USA: The History channel has scheduled the show GREATEST MOVIE GADGETS, Featuring IHS Member Harry Larsen's hydrofoil Bayliner TALARIA.
Build Your Own Hydrofoil
www.foils.org, 28 Mar 2011 [cached]
Regarding the sale of kits/conversions, the market interest has not so far been sufficient, i.e. no one has expressed an interest in buying a kit [to duplicate the TALARIA conversion]. -- Harry Larsen ( talaria@foils.org)
[18 Aug 98] TALARIA III's price is US$35,000, delivered in Seattle. It includes a trailer modified for launching TALARIA III. I have had a few persons in the Seattle Washington USA area or visitors stop by to see the boat. If mutually convenient I can take them for a ride. (It is kept on a trailer). -- Harry Larsen ( talaria@foils.org)
Hydrofoil Kits for Motorboats
www.foils.org, 11 Nov 2003 [cached]
I'll gladly assemble a photo essay for others who like myself, might also follow in Harry Larsen's footsteps. -- Barry Steele ( barry_steele@yahoo.com)
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I would be pleased to hear of your progress and to respond to any further questions you may have. -- Harry Larsen ( talaria@foils.org)
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If you are interested in converting a regular planing hull craft, take a look at Harry Larsen's site to see what is involved, including parts breakout and detailed estimated cost: http://mysite.verizon.net/res6pe7p/index.htm
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In some cases, historically, even successful. -- Harry Larsen ( talaria@foils.org)
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[7 Jan 99] When I was last in Seattle I had the pleasure of not only meeting Harry Larsen but actually getting to ride in his hydrofoil TALARIA III . This is the first time I have been able to ride one foilborne and I can tell you it is amazing! When she is sitting in the water it is not obvious that she is very different from any other cabin cruiser. The fully submerged foil system is controlled with a custom build analog computer using an inclinometer (pendulum type device) for roll control and a front mounted ski type of mechanical height control. Mr. Larsen tells me it was an important design criteria not to use expensive aerospace equipment like gyros. Propulsion is provided by an extended I.O.
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I was most amazed at the stability and feel of control, after becoming comfortable there is no doubt that you could cruise at speed right through most traffic with confidence which Mr. Larsen demonstrated at he took her back into the harbor. He tells me that while it is safe and there is less wake than at all but idle speed hull borne the problem with such a maneuver is that it will scare the wits out of others in the harbor to see this big cabin cruiser moving at 25 knots so close. It would result in someone immediately calling the coast guard or harbor master! Fortunately for us this was a cool fall day and there was no one else around. This would be the perfect answer to big lakes like The Lake of the Ozarks that are nearly unbearable due to the rough conditions from so much traffic. I simply find it ridiculous that there are so few hydrofoils out there. This is a gold mine I swear. For no more than it would cost to have a conversion done, after riding Mr. Larsen's boat there is no way I would spend the kind of money a cruiser of that size cost without having it fit with foils! -- Elliot S. James ( esjames@cvalley.net )
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It may be useful to builders for their better understanding of the cost of the various subsystems. -- Harry Larsen ( talaria@foils.org)
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[29 May 99, updated 19 Mar 00] The one person I know of who has done this is Harry Larsen, a Boeing employee, who modified his Bayliner named TALARIA III. He is willing to correspond with others interested in doing the same.
Hydrofoil Models, Radio Controlled (R/C)
www.foils.org, 2 June 2003 [cached]
[15 Feb 01] IHS member Harry Larsen, who knows a lot more about the math of control systems than I, reckoned that his 4000lb TALARIA III would double its angle of roll in about 1/2 second. If it got to 10 degrees of roll, the flaps couldn't hold it. Even though he was riding it and could feel its lean, he only once drove it without automatic roll control, and after 2 minutes he was exhausted.
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