Search found 356 matches

by Kevin Keller
August 6th, 2013, 8:02 am
Forum: Technical Forum
Topic: Rudder Plan Form
Replies: 20
Views: 21741

Re: Rudder Plan Form

What about the Supermarine Spitfire with the elliptical tips? They were very successful but more complicated to manufacture than a square tip wing. I think that is why you find most gliders have a square tip because it is cheaper. I imagine the dorsal fin on a shark or other fish acts somewhat like ...
by Kevin Keller
August 1st, 2013, 7:27 pm
Forum: Technical Forum
Topic: Square top and self tacking jib?
Replies: 18
Views: 17007

Re: Square top and self tacking jib?

OK, I just found another picture and I remember how he did it. He had the curved track that was attached to a metal bar that extended the width of the beam from inside of the hulls. The piece was attached to the beam by large hose clamps and could be fairly easily removed for trailering.
by Kevin Keller
August 1st, 2013, 7:15 pm
Forum: Technical Forum
Topic: Square top and self tacking jib?
Replies: 18
Views: 17007

Re: Square top and self tacking jib?

Tom recommends the curved track for the SC-20, at least he did for me. Dave Farmer built a small curved track for his telescoping SC-20 and I used to have more pictures of it but I do have one. It might have had to been taken apart to put it on the trailer. You can contact him and he might still hav...
by Kevin Keller
July 25th, 2013, 7:51 am
Forum: General Discussion
Topic: Tom Haberman Mass Email
Replies: 7
Views: 7562

Re: Tom Haberman Mass Email

I never had any intentions of opening. Just wondering who else got it.
by Kevin Keller
July 24th, 2013, 8:26 pm
Forum: General Discussion
Topic: Front crossbar
Replies: 3
Views: 3976

Re: Front crossbar

I think because of high drag if it hits the water.
by Kevin Keller
July 24th, 2013, 6:44 pm
Forum: General Discussion
Topic: Tom Haberman Mass Email
Replies: 7
Views: 7562

Tom Haberman Mass Email

Did any of you guys get the email "Document"? I haven't opened it. Doesn't sound like Tom to send something like that out.

Kevin
by Kevin Keller
July 17th, 2013, 7:05 pm
Forum: General Discussion
Topic: Mast tang for SC15
Replies: 7
Views: 9692

Re: Mast tang for SC15

I used some Amsteel for my trap lines and was able to reduce the number of shackles on the tang. It made it a little less complicated and also lighter. If I come across a picture I will post it.

Kevin
by Kevin Keller
July 17th, 2013, 7:03 pm
Forum: Technical Forum
Topic: Rudder Plan Form
Replies: 20
Views: 21741

Re: Rudder Plan Form

Hi Bill, I figured you must have read Bethwaite's book in the past. His book taught me more about how a sailboat works than any other source I have come across. It even gave me some good theory on airplane wings too. I think you would find his book very good reading, not that you have anything else ...
by Kevin Keller
July 17th, 2013, 6:28 pm
Forum: Technical Forum
Topic: Replacing SS Rudder pins
Replies: 18
Views: 16394

Re: Replacing SS Rudder pins

Hey Bill,

If you are interested in a little Hawaii vacation, let me know! LOL

Kevin
by Kevin Keller
July 13th, 2013, 3:26 pm
Forum: Technical Forum
Topic: Rudder Plan Form
Replies: 20
Views: 21741

Re: Rudder Plan Form

It's been a long time since I read High Performance Sailing by Braithewaite but if I remember correctly he said that using the rounded tip sails or foils gave a longer effective length. Having read that though, I wondered why the trend had gone to square top sails. The square tips do look better and...
by Kevin Keller
July 10th, 2013, 3:58 pm
Forum: General Discussion
Topic: 19 for sale in my area
Replies: 12
Views: 10650

Re: 19 for sale in my area

Personally it looks like a good deal to me. When you consider how much work it takes to get a boat in good shape, that is a small price. To me sails are easy to replace but getting a basic boat in good shape is the most important thing. I am assuming he did a nice job. What would a new comparable bo...
by Kevin Keller
July 10th, 2013, 3:22 pm
Forum: General Discussion
Topic: Mast tang for SC15
Replies: 7
Views: 9692

Re: Mast tang for SC15

You can use synthetic lines for the trap lines and it might make some more room.
by Kevin Keller
June 26th, 2013, 4:07 am
Forum: General Discussion
Topic: Boats and Blondes
Replies: 2
Views: 3552

Re: Boats and Blondes

That's nice. Wish I had some video of my SC20 out bombing around Kaneohe Bay last weekend with 20+knot winds. I had a couple of people on their first cat ride and they were trapping out with the hull flying. Couldn't knock the smile of their faces if I had punched them in the face. I have to make a ...
by Kevin Keller
June 7th, 2013, 4:15 pm
Forum: General Discussion
Topic: Around The Isle Of Texel Race 1980 by Bill Roberts
Replies: 7
Views: 6740

Re: Around The Isle Of Texel Race 1980 by Bill Roberts

Pretty exciting!

Are you doing any racing these days? The last I heard, your son had broken the mast going under that bridge.

Kevin
by Kevin Keller
June 7th, 2013, 4:03 pm
Forum: General Discussion
Topic: Lite Air SC 17 Day
Replies: 10
Views: 9553

Re: Lite Air SC 17 Day

Sorry to hear it broke. Did the hulls show any sign of delamination prior to it breaking?

Kevin