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Re: Skeg Report
By:Bill Hamm
Date: 7/25/2012, 1:45 am
In Response To: Re: Skeg Report *PIC* (Malcolm Schweizer)

: Hello John,

: One thing I would consider with the lexan is "flutter" at
: higher speeds. This is something I deal with a lot in designing
: paddle board and surfboard fins. They have to be very stiff or
: they start to vibrate at speed and sometimes you can even hear
: them hum. Have you thought about trying nylon sheet? It is
: friction reducing, very durable, and pretty darned stiff. The
: friction reduction may help solve your issue with rocks sticking
: in the slot.
: http://www.interstateplastics.com/plastic-sheets-details.php?sku=NYLNE&thickness=0.125&dim2=12&dim3=12&utm_source=froogle&utm_campaign=froogle&utm_medium=na&utm_content=sheet-NYLNE&gclid=COWQ9tbMsrECFSQDQAod_yAAvw

: Here is the latest fin I designed for a displacement hull
: paddleboard that is basically a "stand-up kayak" more
: than a SUP. The hull has a vee all the way down the keel so I
: don't need too much fin. The idea came from a tuna's fins that
: are narrow and swept back. The leading edge is at 30 degrees. I
: often paddle over shallow reefs and want a fin that will tend to
: deflect up rather than snag. Also it makes the fin weedless. We
: have this type of seaweed that floats on the surface in large
: groups and it tends to hang on fins. I am probably going to cut
: it off flat at the bottom, reducing that point at the end by
: about 1.5".

Um...high speed is maybe 7 mph :)

Bill H.

Messages In This Thread

Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 9:39 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messsinger -- 6/12/2012, 9:43 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 9:44 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 9:58 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 10:07 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 10:11 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 10:24 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/12/2012, 10:27 pm
Re: Other: Skeg for existing Guillemot L
Kevin Greer -- 6/13/2012, 6:11 am
Re: Other: Skeg for existing Guillemot L
Randy Echtinaw -- 6/14/2012, 6:13 pm
Re: Other: Skeg for existing Guillemot L
John Messinger -- 6/14/2012, 7:54 pm
Re: Other: Skeg for existing Guillemot L
Bob Johns -- 6/15/2012, 6:48 am
Re: Other: Skeg for existing Guillemot L
John Messinger -- 6/15/2012, 9:44 am
Re: Other: Skeg for existing Guillemot L
Paul Davies -- 6/14/2012, 3:45 pm
Re: Other: Skeg for existing Guillemot L
John Messinger -- 6/15/2012, 8:40 pm
Re: Other: Skeg for existing Guillemot L *PIC*
John Messinger -- 6/17/2012, 9:41 am
Skeg Report *PIC*
john Messinger -- 7/23/2012, 9:19 pm
Re: Skeg Report *PIC*
Malcolm Schweizer -- 7/24/2012, 11:33 am
Re: Skeg Report
John Messinger -- 7/24/2012, 1:23 pm
Re: Skeg Report
Malcolm Schweizer -- 7/24/2012, 1:38 pm
Re: Skeg Report
Bill Hamm -- 7/25/2012, 1:45 am
Re: Skeg Report
Malcolm Schweizer -- 7/25/2012, 6:39 am
Re: Skeg Report
Kirk Fredericks -- 7/25/2012, 9:36 am