Dave I have a C&C 29 Mk2 where the previous owner had hit rocks hard and tore the bottom 10 inches off the rudder and bent the rudder post backward and to port. There was also some damage to the bottom of the keel. I replaced the bent rudder shaft with a new one made from 316 stainless as part of a rudder rebuild. Stainless work hardens if bent and while it can be straightened you are essentially cold working it again to go the other way to straighten and I would be concerned with cracking and overall loss of strength. If you added the required amount of heat to try to anneal to compensate you would like damage the fiberglass rudder and foam core as the anneal temperature for stainless is high. If you are operating in a salt water environment it is also more severe and higher risk of stress corrosion cracking and thus the reason 316 stainless is used vs 304 in marine applications. Marine engineers designed the rudder post to bend if hit hard enough once and thus not rip open the bottom of your boat. I'm not sure they intended it to get straightened and take the same hit a second time and not break off completely or worse. My recommendation is get a new rudder, or at minimum get a new post and have the rudder rebuilt as there is likely more damage you don't see inside or at least the foam core had been compromised by water getting in which was the case with my rudder. Good luck.
James C&C 29 Mk 2, White Magic. SN 001 Sent from my iPad > On Jul 30, 2018, at 3:42 PM, Edward Levert via CnC-List > <cnc-list@cnc-list.com> wrote: > > David > > If your insurance company is pushing for the repair vs replacement, ask them > if they will guarantee the repair and any subsequent damages. > > Ed Levert > C&C 34 Briar Patch > New Orleans, La > >> On Mon, Jul 30, 2018 at 3:35 PM John Read via CnC-List >> <cnc-list@cnc-list.com> wrote: >> David Who is doing the repairs and what experience do they have? Suggest you >> call a reputable surveyor ,some other repair yards and of course to get the >> real answer Nick at Fort Rachel. Best John Read >> >> >> Sent from XFINITY Connect Application >> >> >> -----Original Message----- >> >> From: cnc-list@cnc-list.com >> To: CnC-List@cnc-list.com >> Cc: davidakne...@gmail.com >> Sent: 2018-07-30 11:50:47 AM >> Subject: Stus-List Rudder repair? >> >> I have a decision to make on repairing the rudder on my boat after it was >> damaged in a grounding on a reef. The shaft is bent and they are proposing >> to straighten the shaft and then repair the fiberglass. It was described to >> me by the surveyor as a common process and no big deal. He said they used >> heat and hydraulics to do it while the shaft is still attached to the >> rudder. He described one done recently on a Nonesuch as bent worse than >> mine and came out fine. I have been looking into having a replacement >> built, but that is going to take more time and money to do, so I am >> wondering what the experience and wisdom of the group is on the issue of >> repair. Thanks- Dave >> >> Aries >> 1990 C&C 34+ >> New London, CT >> >> >> >> >> >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each and >> every one is greatly appreciated. If you want to support the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray >> > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each and > every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray >
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