[C38] Tom is right

Don Strong drstrong at ucdavis.edu
Fri Jan 14 11:19:45 EST 2011


Yes. I'm far too lazy to remove the paddle wheel after each sail. 
Anyway, my wife doesn't like to be around when the water shoots into the 
boat; she usually sails with me.
Don

On 1/14/11 7:51 AM, Max Soto wrote:
> Don, don't you have the original signet plug?? That's what I have as 
> permanent, and when using the boat I just install the paddle wheel. 
> After the trip, the plug goes back....
>
> Regards,
>
> Max
>
> 2011/1/14 Don Strong <drstrong at ucdavis.edu <mailto:drstrong at ucdavis.edu>>
>
>     I apologize for the facetious post. Of course the knot meter is
>     very useful for current calculations. It pegs while we come in
>     under the Golden Gate Bridge at max ebb; the GPS says 1.567 knots.
>     This is the main reason, by the way, that the paddle is inconstant
>     on any given day. The big problem with the paddle is its need for
>     constant cleaning; the bugs love to grow there. One could teach an
>     invertebrate zoology course with the species that find a home on
>     the paddle. Don't you just love the green column of water that
>     shoots up into the boat when you extract the device from its
>     mounting!  This still gives me an adrenaline lift, after many
>     years of the experience. I use a wooden bung to plug the hole
>     while cleaning off the paddle wheel.
>     Don
>
>     On 1/14/11 6:56 AM, Tom T. wrote:
>>     I like using both the knotmeter and the GPS.
>>     Coming in and out of Tampa Bay can be a real thrill when you need
>>     to maintain a schedule, like getting crew back to the airport on
>>     time.
>>     The GPS is very accurate but doesn't tell squat about boat
>>     speed through the water.  I've seen 5kts on my knotmeter and zero
>>     on the GPS when we were sailing back beating against an outgoing
>>     tide.  I like to know both speeds, VMG as well as water speed
>>     when I'm trying to calculate my progress and my own tuning
>>     performance.
>>     Tom T.
>>
>>         ----- Original Message -----
>>         *From:* Don Strong <mailto:drstrong at ucdavis.edu>
>>         *To: *listserve at catalina38.org <mailto:listserve at catalina38.org>
>>         *Sent:* 1/14/2011 9:09:12 AM
>>         *Subject:* Re: [C38] speed. GPS is lots better than wheel
>>
>>         We did tests of our Signet paddle wheel versus several GPS
>>         over measured courses with stop watches etc. The wheel was
>>         inconsistent, faster and slower than the GPS. The GPSes
>>         matched each other as perfectly as we could record and
>>         exceeded the precision we could muster with stop watches. No
>>         contest. We quit after a few tries and had a beer.  My pal
>>         was a VP at Magellan, and predicted the outcome. He still
>>         teases me about it.
>>         Don
>>
>>         On 1/13/11 7:46 PM, Steve Smolinske wrote:
>>>         Does anyone have any knowledge on the location of the knot
>>>         meter on the centerline?  Peregrine is in the yard having
>>>         mushroom mounts removed and replaced with flush mounts.  I
>>>         instructed in writing to the yard along with a photo to
>>>         place the knot meter on centerline 33% of the distance from
>>>         the keel to the waterline entry point.  They have placed it
>>>         1' in front of the keel and stated that is the perfect
>>>         location and any further forward it will be subject to
>>>         disturbance from the bow wave.  (yes they went ahead without
>>>         contacting me first)   We are going to talk about it
>>>         tomorrow morning and Im hoping someone has some definitive
>>>         information I can use. Grrrr  Thanks
>>>         Steve
>>>         #312 Peregrine
>>>         Seattle
>>>
>>>
>>>         _______________________________________________
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>>>         http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>>
>>         -- 
>>         Donald R. Strong
>>         Professor
>>         Dept. of Evolution and Ecology
>>         University of California, Davis 95616
>>
>>
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>
>     -- 
>     Donald R. Strong
>     Professor
>     Dept. of Evolution and Ecology
>     University of California, Davis 95616
>
>
>     _______________________________________________
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>
>
>
>
> -- 
> Max Soto
> C38 #198 ESTANCIA
> Puntarenas, Costa Rica
>
>
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-- 
Donald R. Strong
Professor
Dept. of Evolution and Ecology
University of California, Davis 95616

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