Watching for Troublesome Deck Cracks

Author:
Updated:
Original:

There are several things going on in this picture, all stemming from the small hairline cracks radiating out from where the chainplate pierces the deck. At first glance, they may not appear to be that serious. However, they will allow water to penetrate the outer skin and enter the balsa core of this high-end daysailer, setting off a series of problems.

In Northern states, at least, this water will freeze in the winter months. As it does so it will expand, forcing the crack to get a little wider and increase its length by an imperceptible amount each time, thus allowing more water in when the temperature rises again. The boat will go through many of these freeze/thaw cycles during a typical winter, and before you know it you have a real problem and a hefty repair bill.

Damage to the fiberglass may be bad enough, but the real danger is to the chainplates themselves. Crevice corrosion, the nemesis of stainless steel that is deprived of oxygen, could be eating away at the chainplate where it is hidden within the deck’s structure.
In this particular case I recommended that the cracks be ground out before filling and fairing with epoxy. The deck could then be repainted to match the original. I also suggested that the chainplate deck cover (the one with the fours screws) be lifted and the bedding caulk underneath be raked out and replaced to prevent water from getting into the deck by this route too. Not a huge job at this stage, but if neglected the damage could become extensive and the repairs far more costly.

Related

210115-AC36

Prada Cup: Brits Take First Two Races

Who saw that coming? After getting skunked in December, INEOS Team UK has swept the first two races in the Prada Cup elimination series of the 36th America’s Cup  Racing took place on racecourse “C,” sheltered between Auckland’s North Head and Bastion Point to take advantage of ...read more

ac-2048x

Hutchinson: 36th America’s Cup will be a Close On

On the eve of the Prada Cup challenger series, the official start of the 36th America’s Cup, New York Yacht Club American Magic skipper Terry Hutchinson says it’s anyone’s game. "As we've seen in the last week, everyone's gotten faster," said Hutchinson said at the event’s ...read more

Episode1_Thumbnail4_00000_00000_00000_00000

Sailing Docuseries Released Online

Endless Media's Reaching Reality is the story of three friends, a 24-foot sailboat and 1,200 miles. With candor and humor, this series proves that you don't need to be an expert or a millionaire to cast off on the journey of a lifetime. Produced by Emmy-award winner Barry ...read more

01-LEAD-nder-sail-3

Prepping for a Transatlantic

Growing up on the coast of northern England, I dreamed about crossing oceans on my own boat. Like most of us, though, education, a family and a career took precedence, and before I knew it, we had mortgages, young children and endless work obligations. We also became landlocked, ...read more

210111-Vendee

Vendée Update: Josche Forced to Abandon

A week ago, the canting keel on Isabelle Jocshe's IMOCA 60, MACSF, failed. She managed a jury rig with a replacement ram, which held the keel centerline and allowed her to keep sailing, but with a major hit to her speed potential. Jocshe had been in 8th at the time and remained ...read more

rudder

Vendee Update: Emergency Rudder Replacement

A devastated Hare talks about the breakage Pip Hare (Medallia) is back in the game after an emergency rudder repair deep in the Southern Ocean. “Every part of my body aches. I have bloody knuckles on every finger, bruises all down my legs and muscles I didn't know I had that ...read more

Oracle-RBYACFEVD3_2870

PRADA Cup Pairings Announced

The schedule for the PRADA Cup has been revealed as a multitiered extravaganza featuring over a month of racing, stretching from January 15 through February 22. First, the three teams—American Magic, INEOS Team UK and Luna Rossa Prada Pirelli—will face off in a 12-race, six-day ...read more

01-LEAD-Opener-ETNZ1_-106_silo

The 36th America's Cup

A Superbowl is a Superbowl, and a World Series is a World Series. Sure, the names of the players and the teams change from year-to-year, but otherwise, the game pretty much remains the same. Not so the America’s Cup. Still, in many ways a hot mess left over from the days of Queen ...read more