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Re: integral rudder...again
By:Tom Scheibe
Date: 8/26/1998, 2:30 pm
In Response To: Re: integral rudder...again (Nolan Penney)

> Interesting, very interesting.

> Without engaging my brain (too early in the morning), I'd suspect
> your keeping of the boats lines would have a great deal to do with
> the gliding you're talking about. That is if you mean glide while
> using the rudder. If you mean just generic straight ahead glide improvement,
> I don't know then. Though the slight bit of turbulance generated by
> the gap between the rudder and the upper and lower areas might be
> producing some interesting non-laminar flow characteristics. They
> did dimple golf balls for a reason.

Admittedly, subjective, but when engaging the rudder, it feels like the stern is actually skidding. Since the rudder doesn't extend below the keel like a skeg, I can understand how the lessened drag might cause this sensation (and the very tight turning radius) Could the angled plane of the rudder from top to bottom be having any significant effect? The glide with the new rudder in line (not deployed) still seems improved over the flip up Feathercraft rudder when it was locked on deck. I don't believe that's possible, but we've been paddling the Osprey for several years, mostly without the rudder, and we both felt the difference. I tried to talk about boundary layers, coefficients of friction, and Dolphin papillae to my wife, but she said, "Not in front of the children."

Tom

Messages In This Thread

integral rudder...again
Tom Scheibe -- 8/24/1998, 7:03 pm
Re: integral rudder... another question
Edgar Kleindinst -- 8/30/1998, 12:01 am
Re: integral rudder... another question
Nick Schade -- 8/31/1998, 5:51 pm
Re: integral rudder... another question
Edgar Kleindinst -- 9/4/1998, 5:29 pm
Re: integral rudder... another question
Tom Scheibe -- 8/31/1998, 2:18 pm
Re: integral rudder... another question
Joe Greenley -- 8/29/1998, 2:21 pm
Re: integral rudder... Dagger Atlantis
Mark Kanzler -- 8/31/1998, 12:07 am
Re: integral rudder on Dagger Sitka
Ross Leidy -- 9/1/1998, 1:54 pm
Please describe control cables
Pete Ford -- 8/25/1998, 7:47 pm
Re: Please describe control cables
Tom Scheibe -- 8/25/1998, 11:23 pm
Re: Please describe control cables
Mark Bodnar -- 8/26/1998, 6:03 pm
Re: Please describe control cables
Tom Scheibe -- 8/27/1998, 4:29 pm
Re: Please describe control cables
Mark Kanzler -- 8/27/1998, 6:55 pm
Re: Please describe control cables
Nolan Penney -- 8/28/1998, 6:49 am
Re: integral rudder...again
Nolan -- 8/25/1998, 6:46 am
Re: integral rudder...again
Tom Scheibe -- 8/25/1998, 4:36 pm
Re: integral rudder...again
Tom Scheibe -- 8/25/1998, 5:11 pm
Re: integral rudder...again
Nolan Penney -- 8/26/1998, 6:31 am
Re: integral rudder...again
Tom Scheibe -- 8/26/1998, 2:30 pm
Re: integral rudder...again
Nolan Penney -- 8/26/1998, 3:06 pm
Re: integral rudder...again
Mark Kanzler -- 8/28/1998, 12:07 am
Re: integral rudder...again
Nolan Penney -- 8/27/1998, 3:19 pm
Re: integral rudder...again
Mark Kanzler -- 8/27/1998, 7:09 pm
Re: integral rudder...again
Nolan Penney -- 8/28/1998, 7:05 am
Re: integral rudder...again
Mark Kanzler -- 8/28/1998, 11:08 am
Re: integral rudder...again
Nolan Penney -- 8/28/1998, 3:14 pm
Re: integral rudder...again
Mark Kanzler -- 8/29/1998, 10:55 am
Re: integral rudder...again
Mark Kanzler -- 8/28/1998, 10:59 am
Re: integral rudder...again
Nolan Penney -- 8/28/1998, 3:24 pm
Re: integral rudder...again
Mark Kanzler -- 8/29/1998, 11:10 am
Re: integral rudder...again
chris_rolt -- 8/28/1998, 7:14 pm
Re: integral rudder...again
Mark Kanzler -- 8/29/1998, 11:34 am
Re: integral rudder...again
Mark Kanzler -- 8/28/1998, 11:49 am
Re: New BBS Format
Mark Kanzler -- 8/27/1998, 7:14 pm
Re: integral rudder...again
Mark Kanzler -- 8/25/1998, 4:49 pm
A Picture - Rudder on a Cobra Kayak
Tom W. -- 8/25/1998, 3:19 pm
Re: A Picture - Rudder on a Cobra Kayak
Mark Kanzler -- 8/25/1998, 3:55 pm
Re: integral rudder...again
John Lange -- 8/25/1998, 1:01 pm
Re: Dagger Sitka Link
Mark Kanzler -- 8/25/1998, 3:52 pm
Re: Dagger Sitka Link
John Lange -- 8/25/1998, 4:25 pm
Re: Dagger Sitka Link
Mark Kanzler -- 8/25/1998, 4:37 pm
Re: 24' x 26"??
Wynne -- 8/27/1998, 3:04 pm
Re: 24' x 26"??
Mark Kanzler -- 8/27/1998, 7:21 pm
Re: integral rudder...again
Mark Kanzler -- 8/25/1998, 10:55 am
Re: Flow tank testing.
Mark Kanzler -- 8/24/1998, 8:37 pm