Bob, A clever fellow C&C 30 owner taught me this one:
Use a hydraulic bottle jack (or two) to elevate the aft end of the cradle. Then support the hull with screw jacks properly placed under structural bulkheads near the aft pads/bunks. The cradle can then be lowered enough to pull the block of wood free from between the keel bottom and the cradle, leaving enough space to apply anti-fouling. Our club places cradles on 8" wood blocks to facilitate placement by a hydraulic hoist trailer, which makes it easier to get the bottle jack(s) under the aft cross-member. No need to jack very high, so tipping is not a concern (make sure the forward blocks are set diagonal at the corners so they don't roll). I did it on both my 27 and 30, and it worked great. Don Junkins (formerly) Starlight 30 Mk 1 NSC Ottawa On 2013-01-09, at 7:06 PM, Robert Abbott <robertabb...@eastlink.ca> wrote: > Interesting experiences and comments with marine growth on props, struts, > shafts. The problem I have is not so much barnacles, but mussels. As > Martin said, "mussels attach with a self created fiber." > For the past 3 months, I have been praising Micron 66 for its effectiveness > of preventing marine growth. Dwight suggested applying 66 to the prop. > It is worth the try and here's one reason why I think so. > Since 2006, I have used Micron CSC .....every thruhull was painted with CSC > up a few inches with a foam brush....yet mussels grew in the > thruhulls.....last year, the thruhull openings were painted with Micron > 66......mussel growth was almost none existent. Something in the Micron 66 > appears to be effective inhibiting mussel growth. > So, I am going to paint the prop with Micron 66.....what have I got to > loose.....a little paint. > Wish I could paint the bottom of my keel with 66 as well....boat is in a > cradle with the bottom of the keel sitting on a big piece of wood......we > don't use a travel lift. > Any suggestions on how to paint the keel bottom? > > Bob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S. > > > > On 2013/01/09 2:25 PM, Andrew Burton wrote: >> I had my 30' race-boat's bottom cleaned every week starting in August in >> Newport, RI. That's when the water starts to get pretty warm. Prior to that >> I had it done every two weeks. Just a quick wipe with a towel keeps the >> Pettit Vivid nice and clean. No prop to worry about. >> >> Now that I have the C&C, I'm avidly reading the solutions to barnacles here, >> and leaning toward the Pettit Zinc spray. This has been an excellent thread. >> >> Andrew Burton >> C&C 40 >> Peregrine >> Newport, RI >> >> http://sites.google.com/site/andrewburtonyachtservices/ >> phone +401 965 5260 >> >> On Wed, Jan 9, 2013 at 1:05 PM, Martin DeYoung <mdeyo...@deyoungmfg.com> >> wrote: >> A local, avid Soverel 33 racer built a boat sized underwater enclosure >> (float at top, weighted at bottom) into his Shilshole Bay Marina slip. >> After a race he will pour a little bleach into the enclosure to reduce >> marine growth. I’m not sure if the bleach or if the controlled environment >> (less light and nutrients) is the more effective element of this strategy. >> >> >> Getting in and out of the enclosure is troublesome but he swears by the >> effectiveness. Based on his light air racing success he may be on to >> something. >> >> >> Martin >> >> Calypso >> >> 1970 C&C 43 >> >> Seattle >> >> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Bill >> Coleman >> Sent: Wednesday, January 09, 2013 8:15 AM >> >> >> To: cnc-list@cnc-list.com >> Subject: Re: Stus-List Prop Mussel Farm >> >> Here in Erie When the Zebra Mussels first came on strong, they were a huge >> problem for the water authority, now the inject Chlorine at the intake, then >> remove it with carbon at the plant, at least that is my understanding of it. >> >> Chlorine is something I don’t mess with anymore. I put a pellet in my >> Shurflo refrigeration strainer and it ate the 316 SS 50 micron mesh right >> up! Now I use Moth Balls. They don’t allow any growth in the strainer, >> but unfortunately they do allow the fry to pass downstream. I would suggest >> grinding up moth balls into a powder and mixing them up into your favorite >> bottom paint. May not work, but – >> >> it can’t hurt, >> >> there’re inert! >> >> >> Bill Coleman >> >> C&C 39 <Mail Attachment.gif> >> >> >> >> Martin, >> >> In answer to your last question, What do the local power generation and >> utilities use to keep intake and discharges clear? >> >> The answer is divers!! Nothing else will keep some intakes clear, no matter >> what coating or treatment is used. >> >> Jake >> >> Jake Brodersen >> C&C 35 Mk-III >> Midnight Mistress >> Hampton VA >> >> >> >> -----Original Message----- >> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Martin >> DeYoung >> Sent: Monday, January 07, 2013 8:18 PM >> To: cnc-list@cnc-list.com >> Subject: Re: Stus-List Prop Mussel Farm >> >> I suspect that the broad difference in prop anti fouling coating performance >> relates to the way sea creatures attach to the prop. >> >> Here in the PNW, at Shilshole Bay Marina, barnacles are the problem not >> mussels. Even when the zinc paint is wearing out a light brush will remove >> any that remain after applying power to the prop for a few minutes. >> >> The zinc paint seems to kill the barnacles or at least prevent them from >> attaching to the coating. >> >> IIRC mussels attach with a self created fiber. Barnacles seem to grow onto >> the substrate with a softer foot or base which may be easier to poison. >> >> What do the local power generation and utilities use to keep intake and >> discharges clear? >> >> Martin >> Calypso >> 1970 C&C 43 >> Seattle >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> >> >> >> -- >> >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
