Going Up!

Mast climbing should be carefully performed with an utmost emphasis on safety! Each component of your gear should be looked over with scrutiny to make sure everything is in perfect working order. If anything is questionable, don't hang your life on it.

While climbing the mast on the Islander 36 that I am converting to synthetic standing rigging, I noticed that the main halyard is not properly spliced. Instead, the halyard is looped back and stitched together with whipping twine. I was not about to hang my entire life on a questionable halyard termination, so instead I eliminated the weak link from the equation. 

I removed the shackle from the halyard and tied the whole halyard through the gantline block with a secure bowline. This will ensure that the strength of the connection is as strong as a good condition New England Ropes Sta-Set rope, rather than as strong as a whipping twine.

Once back on the deck, the halyard was untied and the shackle replaced into the halyard. This way, nothing was altered on the clients yacht and my personal safety was never hanging by a whipping twine. 

Going up a mast carries inherent risks, most due to falling. By carefully inspecting every part of your gear before you climb, you can make the climb and controlled descent as safe as possible. Be sure to inspect everything each time, as your own gear will break down over time and catching any weak links early is critical to your longevity.

Un-cluttering the Deck

We currently have 5 sails on the deck: Drifter, Jib, Staysail, Mainsail, Trysail; and we can't take them off the deck of the boat. We keep the sails flaked and/ or bagged on the deck to keep them out of the way, but we can't escape the fact that all of these sails are always on the deck.

Maddie has told me that we can't have any more sails on the boat if they are all going to live on the deck. While the sails are put away, they still take up our limited deck space, and she wants as much space as possible for living and relaxing.

The solution is simple: The working sails can stay on the deck but the light air sails need to be stored in a locker. The storm trysail will remain on the mast, as it needs to be ready to hoist at a moments notice should a squall develop quickly.

The reason all of these sails needed to remain on the deck is the way the sheets are tied to the clew. I used a larks head knot, which offers a very secure attachment to the clew while keeping bulk to a minimum. This means the sheets won't foul on the rigging as we tack and the sails have to slide through the forward stays slot. The problem is a larks head knot can not be untied without removing the sheets from the deck. I would have to pull the sheets out of their leads and coil them up to store the sail off the deck. To set the sail up, I would also have to run the sheets through all their leads and back to the cockpit. This seems like a lot of effort in my opinion, so the drifter lives in a bag with the sheets permanently run to it. 

The solution to our clutter problem is simple, change the knot we use to attach the sheets from a larks head to a bowline. A bowline is a very strong and secure knot which is a standard for sheet attachment with a little bulk that can get caught on the rigging. Being how we have synthetic standing rigging, we won't let a fouled sheet stay fouled for long because it could saw into the rigging as the sail flogs around in a blow. 

With bowlines, we can easily untie the sheets from the clew and store the sails that are not in use in a locker. The sheets can be left tied to the lifelines forward of the shrouds and ready to attach to the clew of the sail we want to raise. This also helps make it easier to reef the jib, as we just need to lower the sail, tie the sheets to the new clew, and re-hoist the sail.

The sheets are out of the way attached to the lifelines with the excess coiled up on the lifelines by the cockpit.

Chart Symbols: Wrecks

A very important notation on navigational charts are wrecks and other hazards. These are represented by a variety of symbols which demonstrate the variety of wrecks that you can encounter on the water. 

The dotted line is to delineate an area where a hazard exists. It would behoove you to not sail over these marked areas. Some dotted and shaded areas will have a depth mark on them, these are somewhat safer to navigate over as the depth shows the depth of safe water over the hazard.

This symbol surrounded by dotted lines indicates a wreckage which may show part of the wreck through the surface of the water. PA stands for "Position Approximate" which means they don't know exactly where the wreck is. In general, this is a good warning to stay away because the wrecked vessel could be just under the water and cause serious damage to your yacht. 

Another symbol for a wreckage looks like a boat coming out of the water. This symbol refers to a partially submerged wreck where part of it can be seen above the water. 

Asterisks are used to denote rocks that are awash. Rocks marked by a plus sign (+) signify a rock of an unknown depth.

In general, dotted lines signify places that you should avoid while navigating. If a depth number is marked in association with the obstruction, and you will have enough water between your keel and the obstacle, you may traverse over this area. While it might be safe to pass over, the ocean is huge and there is plenty of water around the obstruction, so why not play it safe and go around the potential hazard?

Pumping Out Rainwater

Our dinghy, Tooth, doesn't have a garboard plug so he has to live floating in the water. If Tooth were out of the water, the weight of the rainwater would blow the hull open. Instead of dealing with a disastrous dinghy repair every time it rains, we leave Tooth in the water where he can fill and simply sink into the water a bit further until I can pump him out. 

When you live on the rainy East Coast of the United States, this almost daily routine quickly becomes a tedious chore when you have to pump out the rainwater with a hand pump or hand bailer. When you walk down the pier heading to your boat after a long days work, the last thing you want to do is deal with this.

The dinghy is sitting a few inches deeper as it has filled up with rainwater during the downpour that occurred earlier today. Since I was not in the mood to pump Tooth out, I set up my handy electric bilge pump. 

The electric pump is a self contained battery powered pump that takes all the effort out of the job. I simply hook the hose over the side of the dinghy which holds the pump in position and turn it on. The pump will suck the water out and slowly get the job done without me breaking a sweat!

As the dinghy begins to empty, the pump will start to draw in air. To remedy this, I simply push down on the gunwale with my feet to tip the dinghy and collect the water in a smaller area with more height. This keeps the pump submerged and continues to suck the water right out of the dinghy. 

After a while, Tooth is floating on his unloaded waterline once again with no major effort on my behalf. To get the last bit of water out of the hull, I will tip the hull and scoop it up with a hand bailer. After using the pump, you will only need to do about 2 to 3 insignificant scoops to get the last bit of water out of the hull.

Dyneema Grommets Looped Together to Form a Chain

I was recently asked if the grommets could be tied in an interlocking fashion as to create a chain of dyneema links using my method of making a dyneema grommet.
The answer to this question is an obvious yes, each grommet simply needs to be spliced together with the previous grommet inside the loop.  

upload.jpg

I had actually made a set of three links while I was still practicing the art of making grommets to use as deadeyes. I made three links to quickly and easily evaluate the interaction between two pieces of dyneema under a load. 

The three links provided me with a wealth of information about how dyneema interacts with loads placed upon it and how it interacts with other dyneema rope under a similar load. It also helped me evaluate the best position to locate the splice on the loop. The top link has the splice in the bottom at the connection to the middle link. The middle link has the splice in the middle. The bottom link has the splice located inside the thimble.

This information led to my decision on using thimbles in my deadeyes and to position the splice in the middle of the deadeye. The top link was hooked over a pipe on a scaffold where the middle link connected the system to the bottom link which had a weight hanging from it. I didn't take any pictures of this test because I didn't have a website or any plans on doing rigging commercially at that time. I was merely designing and testing methods to re-rig my own yacht which led me to produce the current system that I have and use.

The results of the test can still be seen in the loops though. The top link (left link in the photos) was hooked over the scaffold and still retains the bend that it picked up while under the load. The bottom link had a thimble in the bottom portion to hold the weight. The middle link was left untouched to evaluate how the different connections interact.

The top link that was hooked over the pipe was fine, indicating to me that if the object I am attaching to is large enough, the grommet can simply loop over it without any other form of connector.

upload.jpg

The junction of the top link to the middle link also tested the durability of the splice when under direct contact by other ropes. The splice held up fine, even though the middle link formed a tight radius bend over the splice.

upload.jpg

The middle link was the most interesting to observe. It has tight radius bends at either end and the splice located in the middle of the link. The splice side and the bury side both shared the loads equally and evenly. The splice was also easier to inspect which became my preferred position to locate the splice for the deadeyes. The ends of the middle link did suffer from being bent over the tight radius turns of the other links, which could lead to reduced longevity of the grommet. The deadeyes for the standing rigging should not be subjected to such tight radius turns as it could lead to premature failure of the dyneema.

upload.jpg

The connection of the middle link to the bottom link is different from the connection at the other side of the middle link, where a splice was involved. This connection was simply two pieces of dyneema bending over each other. They seemed to hold up well, but did form a rather tight radius bend, which is not the best for longevity of the dyneema.

upload.jpg

The end of the bottom link was subjected to loads with a thimble placed in it. The splice was also located at the bottom, inside the thimble. The splice held find under load and with a large radius turn, as guided by the thimble used. This seemed to be the preferred way to connect the standing rigging to the deadeyes, as the thimbles will force the grommet to retain a properly radiused turn while under tremendous loads. The splice located at the bottom worked well but was difficult to inspect.

upload.jpg

After being loaded, the links retained the shapes they became during the test. The top and bottom links had ends that were forced to maintain large radius bends due to the scaffold pipe on the top link and the thimble on the bottom link. The ends that were not guided formed much tighter radius turns, as they folded over each other. While the bend was rather tight, the loads were maintained even on the links, and none of them showed any signs of problems. The splices also functioned well in all three locations: In the connection, in the middle, in the thimble; and the location for them to be in the middle on my deadeyes was purely for inspection purposes.

Based on this experiment, I decided to manufacture the deadeyes with thimbles on their ends and the splices located in the middle of the grommet. The thimbles provide a properly radiused bend even when under the immense load of working standing rigging.