[C320-list] FW: Optical Tach

[Karl Mielenhausen _/)]

An optical tach is an item for loan from the C320 Toolbox, your latest membership benefit.

Details are here...

http://www.catalina320.com/article.php/20070417084525142



Karl Mielenhausen

2000 C320 Hull#690 "Silver Lining"

New Bern, NC

http://pages.suddenlink.net/kmielen/



From: T. Scott Thompson [mailto: sthompson at toad.net]

To: c320-list at catalina320.com

     Cc: c320-list at catalina320.com

Date: Wed, 17 Oct 2007 13:32:36 -0400 (EDT)

Subject: [C320-list] Gori two blade problems



The person I spoke to at the Annapolis Sailboat show was Geoff Prior.  Thebooth said "Gori" as well as AB Marine.  I just sent an email to himasking for the field test data sheet that I'm supposed to fill out todocument the problem.  I'll keep you posted about what I learn.  I tookcareful notes shortly after launching the boat with the new prop anddocumented engine rpms vs. GPS speed (no current, no wind) with a cleanbottom.By the way, I'd like to purchase an optical tach to verify that my boattach is accurate, since I'm sure they will question that.  I have notfound any RC airplane stores locally, which has been a recommended sourceon this list.  Does anyone have a recommendation for a specific model anda place to buy it online?> I suspect nothing, my prop is new this year and to hear AB it is all> my problem. Shaft too long, engine not up to par, bent shaft yada> yaday ada, Oh just pull your boat for $300 3 or 4 times to sort out> there problem. If it did 7.1 kts with a 
fixed 3 blade and dirty> bottom but now only 6.7 at 2500 max rpm on a clean bottom  not the> 3000 it use to get and any more is just smoke, it is over pitched.> The increase in speed and no vibration when sailing at hull speed is> great. The Hurth transmission on the old Perkins says to let in spin> in neutral not put it in gear as most models say. Let us know if they> have found there math error yet. This is a cruiser not a raced boat> and weighs accordingly.>> Pat  #130>> Gori 2 blade>> At 07:07 AM 10/15/2007, you wrote:>>Scott,>>>>I assume you spoke with Steve Armitage from AB? I have also spoken>>with him about my inability to get up to full RPM underway. I have>>done the field test that he suggests and will now speak with him>>about what they will do. My prop is 3 years old.....>>>>Will let you know what they come back with...>>>>Regards,>>>>Jon Vez>>>>-------------- Original message -------------->>From: "T. Scott Thompson" <sthompson at toad.net>>>>> > The alignment 
problem goes away if you get a geared folder such as the>> > Gori two-blade, since the one on the bottom can't hang down without>> > lifting the upper one up. However, be warned that AB Marine -- the US>> > distributor for Gori -- has a history of selling overpitched props to>> > 320 owners. If you get one, be sure to test it immediately upon launch>> > and insist on changing it out immediately if you can't get the engine>> up>> > to full RPMs under way with a clean bottom and prop.>> >>> > I spoke to the AB Marine rep about this at the Annapolis Boat show>> last>> > week. He wants me to run a whole battery of tests after which it isn't>> > clear what kind of service I can get to solve this problem with my two>> > year old prop.>> >>> >>> >>> > Kirk McCullough wrote:>> > > Folding is good too, as long as you align the shaft with a 2>> blade so you>> > > don't have one blade hanging down when under sail. A feathering>> prop won't>> > > have this problem, particularly a Kiwi 
where each blade feathers>> > > independently, and in-line with the water flow, not in-line>> with the shaft.>> > >>> > > Kirk>> > >>> > > -----Original Message----->> > > From: c320-list-bounces at catalina320.com>> > > [mailto:c320-list-bounces at catalina320.com] On Behalf Of>> > > Orlando.Duran at AveryDennison.com>> > > Sent: 13 October 2007 18:37>> > > To: Catalina 320 List>> > > Subject: Re: [C320-list] Early Christmas Present>> > >>> > > I completely agree with you...>> > >>> > > cl 3>> > > ---------------------------------->> > > Regards,>> > > OD>> > >>> > > Sent from my BlackBerry Wireless Handheld>> > >>> > >>> > > ----- Original Message ----->> > > From: Stord>> > > Sent: 10/13/2007 06:02 PM>> > > To: c320-list at catalina320.com>> > > Subject: Re: [C320-list] Early Christmas Present>> > >>> > >>> > > "Go for feathering over folding">> > >>> > > I'm not sure I'd agree with this. I have an autostream feathering>> prop.>> > > While I like the performance, I think the folding 
might be>> slightly better>> > > under sail. However, IMO, the feathering will do better backing the>> boat>> > > into>> > > the slip.>> > > Steve>> > > s/v Joy 756>> > >>> > >>> > >>> > >>> > > In a message dated 10/13/2007 4:13:37 P.M. Eastern Daylight Time,>> > > kirk.mccullough at telus.net writes:>> > >>> > > Go for feathering over folding>> > >>> > >>> > >>> > >>> > >>> > >>> > > ************************************** See what's new at>> http://www.aol.com>> > >>> > > - ----------------------------------------------------------------->> > > The information transmitted is intended only for the person or>> entity to>> > > which it is addressed and may contain confidential and/or privileged>> > > material. Any review, retransmission, dissemination or other use of,>> or>> > > taking of any action in reliance upon, this information by persons>> or>> > > entities other than the intended recipient is prohibited. If>> you received>> > > this in error, please contact the sender and 
delete the>> material from any>> > > computer.>> > >>> > >>> > >>> >>> Pat Moriarty> PSI Urethanes Inc> PH: 800-888-5156  Fax: 512-837-8733> Please visit our web site at> www.psiurethanes.com>>>>

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