Monday, May25, 2020
Privacy Policy

Papoose Rail Repair

During the 2008 Jessica Cup Papoose ripped her 155 jib and in the process pulled up the rail on the port side. It turns out that this area of hull was damaged in the 1960's in a race in SF Bay. Although Papoose was a Southern California boat, she was also fast and heavily raced. I have been told that she won half the races she entered by someone who raced on her at the time. He said that they came up to SF to race some series and thought they could get past this buoy that was off Chrissy Field at the time. The buoy is no longer there. Papoose hit the buoy and almost had here rig torn off but made it out with just some hull damage. My dad always wondered what happened but after I got the boat, with the wonder of the Internet, I talked to someone who was on the boat at the time, thus the story above.

The new Quantum 155 jib tacks right at that point of damage. The hull was split and the backing block under the deck had been pushed away by the collision and the screws that held the rail at that point went into the air between. Here are a couple of pictures taken after the block was removed.

This is a picture from below looking sideways at the port hull

This looks at the same section but looking up at the bottom of the deck.

I put thick West System epoxy liberally in the cracked hill and put the backing block back. I held it in place with a screwdriver used as a pry bar to keep the block in postion while the epoxy dried. There was not enough of the hull with sound wood to sink a screw into to hold it in place.

Backing block and lots of excess epoxy.

You can see from these shots that the hull is in pretty bad shape. I removed about 5 feet of rail and plugged the holes with mahogany dowels that I cut. You make dowels by pounding a square peg through a round hole, by the way.

Here are the dowels after the glue set. You may notice that the existing screws were angled every which way.

I wanted to have the new screw holes go through the hull so I first did some measurements and did a drawing of the existing deck and hull.

Drawing based on careful measurements including drilling a hole to measure hull thickness.

I wanted to keep the position of the end of the 4 inch screw exactly where I wanted in the hull. I decided I wanted it centered 0.55 inches from the outside of the hull. You can see from the picture that if the screws were set at 90 degrees to the deck, they would not to through the hull very far. They would penetrate the hull inside and go into the backing block (not shown). I wanted them in the hull so that they would keep the hull fastened as well as hold down the rail. I built a fixture that would position it right there. The fixture has a bolt that fits securely in the countersunk hole in the rail to position the drill centered in the rail hole. It rests fore and aft on the rail so that the hole will be perpendicular to the deck. The adjustable cap screw forms a stop that rests against the outer edge of the hull when the hold is drilled. Here is a picture showing the fixture with the drill inserted in the guild hole drilled in the bolt that goes into the counter sunk hole in the rail when the pilot hole is drilled.

Fixture welded up to keep drill tip positioned relative to hull

Counter sink with hole in it same size as pilot hole.

Brass rod fits exactly where screw will go so bronze rail can be counter sunk to match new angle of screws.

Here is a picture of the fixture in place on the finished rail in the position it would be in to drill another hole.

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.