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Showing results 1 to 21 of 21
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Search: Posts Made By: BigCat69
Forum: General Discussion (sailing related) 02-20-2009
Replies: 58
Views: 6,836
Posted By BigCat69
Photoshopped?

Is that photoshopped? Every photo I have ever seen of Team Phillips had a wingmast / wishbone soft sail biplane rig.
Forum: General Discussion (sailing related) 02-16-2009
Replies: 58
Views: 6,836
Posted By BigCat69
Tom Speer and WingSails

I have been getting inspiration from Mr. Speer for years. The issue of how to control a wing might be problematic from a seaworthiness standpoint. I certainly don't want to require the use of...
Forum: General Discussion (sailing related) 02-14-2009
Replies: 58
Views: 6,836
Posted By BigCat69
Wingsails - Here's a proven one

The Harbor Wing and Walker Wing boats actually exist. The Dalhberg is a photoshopped concept rather than an existing boat. The Walker Wing concept has been tested on a cruise across the Atlantic. ...
Forum: Sailboat Design and Construction 02-10-2009
Replies: 18
Views: 13,689
Posted By BigCat69
The less cabin, the better from a windage and...

The less cabin, the better from a windage and weight standpoint. There are various rules of thumb for bridgedeck clearance. .06 x DWL is one. As far as hull waterline beam goes, some say 16 to 1...
Forum: General Discussion (sailing related) 02-09-2009
Replies: 58
Views: 6,836
Posted By BigCat69
I saw online a blog in which someone in New...

I saw online a blog in which someone in New Zealand saw a trimaran that either was or was very similar to a Walker Wing Sail. It had sailed there from the Netherlands, so maybe it is true that the...
Forum: Sailboat Design and Construction 09-09-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Hoyt's tweaks

Well, of course that is quite different than the Hoyt rig. The Hoyt Jib Boom is just a brand of jib boom, and he certainly didn't invent the concept. Like the Hoyt rig, it is a tweak of an existing...
Forum: Sailboat Design and Construction 09-08-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Racing rules kill innovation

Well, they like the fastest boat on corrected time, and unfavorable ratings and flat out bans have killed many superior innovations. Herreshoff's catamaran Amaryllis is a case in point.
:mad:
Forum: Sailboat Design and Construction 09-01-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Balancedrig.com

I just tripped over another balanced rig website, The Balanced Rig, Sailing, mast, rig, boom, sails, jib, main sail (http://balancedrig.com/) . Basically, it is like a cross between Hoyt's rig and a...
Forum: General Discussion (sailing related) 08-06-2008
Replies: 25
Views: 6,581
Posted By BigCat69
Easily reefed and furled

My wing sail design is more easily reefed or furled than a marconi sail, because each batten set is a reef point, and the sail has lazy jacks. I have made no provision for light air sails, because...
Forum: General Discussion (sailing related) 08-05-2008
Replies: 18
Views: 1,712
Posted By BigCat69
Bummer! This is why I like unstayed rigs.

Bummer! This is why I like unstayed rigs.
Forum: General Discussion (sailing related) 08-05-2008
Replies: 25
Views: 6,581
Posted By BigCat69
Unstayed wingsail rig

Yes it does. The calculations and plans for the unstayed masts have been examined and approved by the US Coast Guard's engineers at the Marine Safety Office in Washington DC.

I sailed a boat...
Forum: General Discussion (sailing related) 08-05-2008
Replies: 25
Views: 6,581
Posted By BigCat69
WingSails and advertising

No one has ever made any money with wingsails yet, so I doubt the viability of advertising one. I am an advocate of wingsails, and have a number of wingsail links, but I wouldn't bet a plugged...
Forum: Sailboat Design and Construction 07-15-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Hoyt rig / junk rig / unstayed marconi rig

Perhaps the main difference between the Hoyt rig and a junk rig is that the junk rig has sheet parts running up the leach, to each batten. This distributes the stresses extremely well, and it makes...
Forum: Sailboat Design and Construction 07-15-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Cool Modified junk rig

"Looks like a junk rig." If that is a remark about my rig, BigCat 65's rig is indeed a modified junk rig-modified in 2 ways-it has a foil shape to eliminate mast drag and turbulence where it is...
Forum: Sailboat Design and Construction 07-02-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Off center thrust?

"I would think the goose-neck would be the weak link since having the sail off-center creates a lever arm for the forces on the mast down low. Also, if your sail is far off center doesn't that put...
Forum: Sailboat Design and Construction 04-16-2008
Replies: 18
Views: 13,689
Posted By BigCat69
Cool Hull speed for catamarans

This article posted by Kantor explains how to calculate hull speed for catamarans, based on the width of their hulls (in proportion to the length.)

Southwinds - January 1999...
Forum: Sailboat Design and Construction 03-28-2008
Replies: 37
Views: 7,860
Posted By BigCat69
No sailing photos yet, Giulietta-I am getting...

No sailing photos yet, Giulietta-I am getting this one approved by the USCG (United States Coast Guard,) as a passenger carrying vessel (commercial use,) so it's just a gleam in my eye at the moment....
Forum: Sailboat Design and Construction 03-28-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Giulietta-Thanks for the kind thoughts.

"Can I be the Devil's advocate here??" -Thanks for the kind thoughts, Giulietta. While I do offer to sell copies of my design, I am not in the marine business, and in fact, I designed my boat for...
Forum: Sailboat Design and Construction 03-28-2008
Replies: 37
Views: 7,860
Posted By BigCat69
My opinion is founded on considerable experience. What's the basis of yours?

"By the way, I don't know how much time you spent with lug rigged mono-hulls but they are not a good combo." -My rig was designed by Blondie Hasler, a founder of the single handed trans-Atlantic...
Forum: Sailboat Design and Construction 03-28-2008
Replies: 37
Views: 7,860
Posted By BigCat69
Spam? I don't think so-I'm an old yachtie-

On a BBS, wouldn't spam be something off topic? My post wasn't off topic, though yours may be. In e-mail, spam is an unsolicited advertisement, but BBS' are meant to have unsolicited posts. I have...
Forum: Sailboat Design and Construction 03-28-2008
Replies: 37
Views: 7,860
Posted By BigCat69
For another out-of-the-box approach to making an...

For another out-of-the-box approach to making an easily handled but efficient offshore rig, check out my website at 65 Foot Sailing Catamaran Design by Tim Dunn...
Showing results 1 to 21 of 21

 

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