[C38] 14 knts

Fri Jul 10 12:21:04 EDT 2009

Patrick: Very nice sail!  I have done the route several times, but never 
at this rate.  Running under asym or ? regards, Don

Patrick Harpole wrote:
>
> *Recently I sailed from Benicia to Berkeley on an ebb tide....GPS said 
> I was doing 14 knots!!!*
>
> *I was.*
>
> *Patrick*
>
> *Blue eyes*
>
> * *
>
> ------------------------------------------------------------------------
>
> *From:* listserve-bounces at catalina38.org 
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of *Rich West
> *Sent:* Thursday, July 09, 2009 9:30 AM
> *To:* 'Catalina 38 Listserve'
> *Subject:* Re: [C38] Boat Speed
>
>  
>
> The hull speed formula is 1.34 times the square root of the waterline 
> length.  In the case of our boats with a LWL of 30.25 feet, that comes 
> out to 7.37 knots.
>
>  
>
> The problem with speed reports is that you have no idea how accurate 
> the data is.  Is it from a GPS?  Was there a current with the boat 
> when the reading was taken?  Or is it someone looking at the peaks in 
> speed on their knot log?
>
>  
>
> On a trip to Hawaii, we left at the same time as  a Lapworth 40.  We 
> had set up a radio schedule to stay in contact through the trip.  He 
> told us that we'd have to go to a higher frequency as the trip 
> progressed as he had a much faster boat than ours and would get 
> way ahead.  We were in no hurry and figured he was right.  During the 
> trip, we talked every day and reported our position and boat 
> speed.  While we were reporting an average speed over 24 hours in the 
> 5 to 6 knot range, he'd consistently tell us he was doing 7 or 8 
> knots.  Position reports showed us gaining 20 or 30 miles a day the 
> Lapworth.  
>
>  
>
> I guess he didn't plot our position relative to his, or he didn't 
> believe our reports, but there was dead silence on the radio when we 
> reported that we were hook-down in Radio Bay, Hawaii and he still had 
> well over two days to go.  Yea, I'd say our boats are fast, even when 
> you don't try.
>
>  
>
> Rich, Legacy, #360, San Diego
>
>  
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* listserve-bounces at catalina38.org 
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of *Patrick Harpole
> *Sent:* Thursday, July 09, 2009 8:49 AM
> *To:* drstrong at ucdavis.edu; 'Catalina 38 Listserve'
> *Subject:* Re: [C38] Boat Speed
>
> *What is the formula for hull speed?  Square root of length at water 
> line divided by something?*
>
> *That's as fast as displacement boat will go*
>
> *Patrick*
>
> *Blue Eyes*
>
> *S.F.** Bay***
>
> * *
>
> ------------------------------------------------------------------------
>
> *From:* listserve-bounces at catalina38.org 
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of *D. R. Strong
> *Sent:* Thursday, July 09, 2009 8:37 AM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] Boat Speed
>
>  
>
> Paul: 
>     Fast with sailboats is relative. The C38 is lots faster than the 
> C34, which means that in a mile and decent wind, the C38 can go about 
> 50 yds farther than a C34. I am sceptical of the claim for any 38' 
> cruising monohull of "8-9 knots consistently in moderate winds." 
> Discreet Charm, C38 #50, will do 7.5 to windward (GPS) in 18-20 knts 
> wind, no currents, under a 110% jib. Same wind on a beam reach gives 8 
> to 9 kts, on a good day. We have clocked 15 kts downwind in 25 kts 
> wind with our asymm spinnaker.  These were white knuckle experiences, 
> crazy, and scary; we aren't racing people. Spinnaker on a pole with 
> several skilled crew would probably do better.
>     Listen to the racers for max speeds.
> Regards, Don
>
> PAUL NOTTE wrote:
>
> Perhaps Kerry of littlebreeze will send you some picts of his cat 38 
> in moderate wind .. How bout it Kerry?
>
> ----- Original Message -----
> From: w humphrey <hump5776 at yahoo.com> <mailto:hump5776 at yahoo.com>
> Date: Thursday, July 9, 2009 6:12 am
> Subject: [C38] Boat Speed
> To: listserve at catalina38.org <mailto:listserve at catalina38.org>
>
> > Hello, I am a new user of the listserver and an owner of a 34
> > Catalina. I have heard that the 38 is a fast boat and there may
> > be a possibility that I may purchase one in the near future. My
> > question is: how fast do these boats sail normally. Do owners
> > really see 8-9knts consistently in moderate winds. I am in the
> > great lakes and see 5-6.5 boat speed as an average with winds 10-
> > 20 and sometimes 7 or a bit more in 20+. The reason I am
> > considering a 38 is for more speed so any realistic real
> > world experience would be appreciated, including performance in
> > lighter winds.
> > Thanks, Bill 
> >
> >
> >      
>
>  
>  
>  
>
>
> ------------------------------------------------------------------------
>
>
>  
>  
>  
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>
>  
>
> -- 
> Donald R. Strong
> Professor
> Section of Evolution and Ecology
> University of California Davis
> 95616
> 530 752 7886
>
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-- 
Donald R. Strong
Professor
Section of Evolution and Ecology
University of California Davis
95616
530 752 7886

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