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Doug Lord

Member Since 25 Dec 2003
Online Last Active Today, 01:40 PM
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Topics I've Started

K2 Kite Foiler on San Fran Bay

19 May 2013 - 09:18 PM

This is quite possibly the best designed kite foiler around:

 

http://www.youtube.c...h?v=C0UpChmLR20


Americas Cup 2013

14 May 2013 - 10:44 PM

I think these extraordinary new boats are the best thing to happen to the America's Cup in decades. I think the design, including the first use of hydrofoils ever in an AC, is a technological advance that should be cheered and recognized for the incredible sailing that it makes possible. No one will convince me that there is something intrinsically wrong with this technology and that it should be put back in a box never again to be witnessed by mortal mankind-never! It is an advance, a summation of all that is good about sailing and adventure, and a door opening to a spectacular world of super sailing that has never been seen on this earth. Tragedy has often been part of giant leaps of technology and in most cases the development continues until we get it right-thats what should happen in this case.
http://www.youtube.c....layer_embedded

Trickle Down!

06 May 2013 - 06:54 PM

See post 179, 180 here: http://forums.sailin...=2#entry4130026

 

Picture by Pierrick Contin / Sail Innovation


Speed Dream 27

06 May 2013 - 12:23 AM

First, turn the sound down-very bad sound quality but the boat looks real good(have questions about the keel popping in and out) :

 

https://www.youtube....h?v=YchFS5OGTMY

 

http://www.speeddream27.com/main.html


Movable Ballast Dinghy Design

20 April 2013 - 08:16 PM

Seems to me that there is a lot of room in fast dinghy design for real innovation that would allow non-athletic crew the opportunity to sail a fast, crew-rightable(w/o very much crew movement and w/o outside assistance)planing dinghy:
1) Trapwing System-a sealed wing with ballast sliding inside( that moves as the wing does).The wing is supported by trapeze wires. Ballast about 80lb for a 14 footer. Can be moved manually or electrically very quickly-faster and farther than another crew could move. Enormous RM AND the capability of using the "wing" to right the boat since the wing has more buoyancy than that required by the ballast inside it.
2) DSS foils- these foils, either retractable or not, can be used on a dinghy specifically designed for them to create about 15% more RM upwind and close to 100% more off the wind. If the foils don't retract, the boat has to be designed to sail at an angle of heel of about 10 degrees. DSS must be used with a movable ballast system like the Trapwing system.
3) This kind of system would open up a whole new area of performance dinghy sailing for those who are not athletic enough or who don't want to be athletic enough to sail a singlehanded trapeze boat. It would be and incredible way to sail for many, many people who otherwise could (or would) never sail a performance dinghy. It would be safe,rightable by the crew and is based on model testing for over 10 years.
4) In a few months, if I can raise the money, I'm going to build a full size version of the Crossbow fl, below.

Picture-14'Crossbow fl scale model:

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