[C320-list] Club Racing the C320

Tue Aug 28 18:14:21 PDT 2007

In salt water barnicles can grow on the prop. So bottom is normal. The Kiwi 
is a composite material and bottom paint stays on quite well.

Kirk
#124
----- Original Message ----- 
From: <drshoffner at aol.com>
To: <c320-list at catalina320.com>
Sent: Monday, August 27, 2007 6:40 AM
Subject: Re: [C320-list] Club Racing the C320

> It's pretty common practice in the southern waters, but the problem is 
> that it doesn't adhere to metal props and is gone in just a short while.? 
> Polishing the prop with a wire brush to remove any oxidation also seems to 
> help, but again is short lived.
>
> Mike
>
>
> -----Original Message-----
> From: Dave Moores <dmoores at cogeco.ca>
> To: 'C320-List' <c320-list at catalina320.com>
> Sent: Mon, 27 Aug 2007 9:15 am
> Subject: Re: [C320-list] Club Racing the C320
>
>
>
> I never heard of anybody putting antifouling paint on their prop before. 
> Is
> this a widespread practice?  Nobody around here (Lake Ontario) does that 
> so
> maybe it's needed in the warm waters of the sunny south?
>
> Dave Moores
>
> -----Original Message-----
> From: c320-list-bounces at catalina320.com
> [mailto:c320-list-bounces at catalina320.com] On Behalf Of drshoffner at aol.com
> Sent: August 27, 2007 9:00 AM
> To: c320-list at catalina320.com
> Subject: Re: [C320-list] Club Racing the C320
>
>
> Thanks.? I used PropSpeed this season also and will haul my boat this week
> to have a look, but it's awfully pricey.? A couple of years of PropSpeed
> would pay for a Kiwi prop and some bottom paint.
>
> Mike
> #171
>
>
> -----Original Message-----
> From: brucestanley <brucestanley at optusnet.com.au>
> To: C320-List <c320-list at catalina320.com>
> Sent: Sun, 26 Aug 2007 9:21 pm
> Subject: Re: [C320-list] Club Racing the C320
>
>
> "How well does the Kiwi hold bottom paint.?"?
> The Kiwi prop blades seem to like PropSpeed over the normal Ablative/Hard
> antifouls.? In Australia a lot of us are using PropSpeed.? PropSpeed holds
> over a 12 month period very well.? Ablative Antifoul will come off the 
> blade
> tips.? Some put on a Hard Antifoul (2 coats) then add 2 coats of 
> Ablative.?
> This sees them through to a 12 mth period? ? Bruce Stanley / Sydney? ?
> ----- Original Message ----- From: <drshoffner at aol.com>?
> To: <c320-list at catalina320.com>?
> Sent: Monday, August 27, 2007 10:30 AM?
> Subject: Re: [C320-list] Club Racing the C320?
> ?
>> How well does the Kiwi hold bottom paint.? In FL where my boat lives,
>>> marine growth on the runnng gear is a bigger problem than the bottom,
>>and > I have not yet found a solution to prevent this.? ?  Mike?  #171?
>>?
>>?
>> -----Original Message-----?
>> From: Kirk McCullough <kirk.mccullough at telus.net>?
>> To: C320-List <c320-list at catalina320.com>?
>> Sent: Sun, 26 Aug 2007 7:39 pm?
>> Subject: Re: [C320-list] Club Racing the C320?
>>?
>>?
>> Good input Scott.??
>> ??
>> On feathering props, the Kiwi is unique in the way it feathers. It is 3 >
> balded and feathers each blade independantly. Each blade aligns with the >
> flow independ of shaft angle, where the shaft stops rotating (ie no need >
> to lock the shaft to be sure blades are folded properly) independant also 
>  >
> of underbody shape, heel etc etc. Other feathering props are made so all >
> blades are feathered at the same angle and don't consider shaft angle >
> etc.??
>> ??
>> Kirk??
>> Boomerang #124??
>> ??
>> ----- Original Message ----- From: "Scott Thompson" 
>> <sthompson at toad.net>??
>> To: "C320-List" <c320-list at catalina320.com>??
>> Sent: Sunday, August 26, 2007 4:02 PM??
>> Subject: Re: [C320-list] Club Racing the C320??
>> ??
>>> Because the rules are made by serious racers, and no serious racer
>>>wants >> a > rule change that would generally make it better to have a
>>>slower >> sailing > boat. Few racers, even on San Francisco Bay, share
>>>Adam's >> rapture about > the the benefits of using a fixed prop as a
> brake! The >> rules are thus > biased in favor of racing gear over 
> cruising
> gear, and >> no one believes > that they equalize all boats. If that's 
> what
> you are >> after switch to a > strict one design class and get out of
> PHRF.?? ??  For what it's worth, I believe that folding props are faster
> than > >> feathering ones, and if you really want to race successfully you
> will do >> > better with a small two-bladed folder that folds into a 
> really
> compact >> and > streamlined package (e.g. the nicer Martec) than with any
> other >> prop. On > the other hand, if you are really that serious about
> racing >> then the 320 > isn't a very good choice of boat in the first
> place. I >> love to cruise my > 320 and I love to race. But I race boats
> that
> are >> designed for speed, not > cruising comfort.??
>>>??
>>> Scott??
>>>??
>>> chris denny wrote:??
>>>> If it is generally accepted that a folder is that much of a benefit,
>>>>why >>> >> is the allowance for a fixed prop not greater? I thought
>>>>the idea was >>> to >> make things "equal". Is 6 seconds the
>>>>"standard addition" for a >>> fixed >> prop???  cd #328??  Peter
>>>>Clancy wrote:?? ??
>>>>> Casual racers may underestimate the value of relatively small speed
>>>>>>>> >>>> improvements.?? ??  For example, assume a course is 15
>>>>>nautical miles long. If you have a >>>> >>> modest 1/2 knot per mile
>>>>>speed advantage (with a folding prop) over >>>> an >>> identical boat
> with a fixed prop and you average 6.5 knots, by >>>> the time >>> you 
> reach
> the finish you'll be at least 10 minutes ahead >>>> of the slower >>> 
> boat.
> If that boat has a 6 second per mile rating >>>> advantage due to a >>>
> fixed prop, he only gains 90 seconds or 1.5 >>>> minutes when corrected. 
>  >>>
> Generally speaking, the lighter
> the air, >>>> the greater the benefit of a >>> folding prop. We raced
> 'AROBAN' >>>> successfully for several years with a >>> Gori two-blade
> folder and >>>> took first in class in last October's Columbus >>> Day
> Regatta which is >>>> South Florida's largest annual sailboat race.??
>>>>> The C320 is a capable racer especially when tweaked and sailed for
>>>>>>>> >>>> optimum speed.?? ??  Peter Clancy??
>>>>> 'AROBAN' #222 (former owner)??
>>>>> Miami, FL??
>>>>>??
>>>>>??
>>>>>??
>>>>>??
>>>>>??
>>>>>??
>>>>>??
>>>>> ----- Origi nal Message ----- From: Joe >>> >>>>
> Barrett<mailto:joe at dolphinmortgage.com> To: >>> >>>>
> 'C320-List'<mailto:c320-list at catalina320.com> Sent: Tuesday, August 21, 
>  >>>>
>>>> 2007 9:19 AM??
>>>>> Subject: Re: [C320-list] Club Racing the C320??
>>>>>??
>>>>>??
>>>>> If going from a fixed to a feathering/folding prop gains you 1/2-3/4
>>>>> >>> knot of??
>>>>> speed do the math. The 6 seconds you loose makes getting a??
>>>>> feathering/folding prop a no brainer.??
>>>>> Joe Barrett??
>>>>>??
>>>>> -----Original Message-----??
>>>>> From: >>> >>>>
> c320-list-bounces at catalina320.com<mailto:c320-list-bounces at catalina320.com>?
> ?
>>>>> [mailto:c320-list-bounces at catalina320.com] On Behalf Of chris denny??
>>>>> Sent: Tuesday, August 21, 2007 10:05 AM??
>>>>> To: C320-List??
>>>>> Subject: Re: [C320-list] Club Racing the C320??
>>>>>??
>>>>> If a folder is that much help, why does having a fixed prop get you 
>>>>>  >>>
>>>>> just 6??
>>>>> seconds on your adjusted PHRF???
>>>>> CD #328??
>>>>>??
>>>>>??
>>>>??
>>>>??
>>>>??
>>>??
>>>??
>>>??
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>>?
>>?
>>_______________________________________________________________________
>>_?
>> Email and AIM finally together. You've gotta check out free AOL Mail! - >
> http://mail.aol.com ?
>
>
> ________________________________________________________________________
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>
> ________________________________________________________________________
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>
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