The Naiad Voyages

Mark Austen

2016.12.03 - Small Jobs

Having slept on the matter I decided that bringing the rubbing strake under repair into the house was a good idea. The forecast indicates that the temperature in the latter part of next week should rise to perhaps 11 or 12 celsius and that would be a good time to try and complete the outstanding epoxy work on the coachroof and the rubbing strakes. so I need the broken strake repaired and solid before then and warming the strake up, especially in the area of the join, is therefore a good idea. So I removed the remainder of the screws and brought it indoors.

The chain plates were up next, they needed to have three holes drilled in them, outer backing pads made, the holes in the hull and inner backing pads drilled.

The rubbing strake in the kitchen and living room. As you can see, I'm also keeping my epoxy in the house as well.

The gas heater was used to warm up the section around the join but not too warm or the epoxy would go soft.

The drilled chain plates and the outer backing pads.

And here is the the first one in place. That took about an hour to achieve. The holes were easy to drill but getting the nut and washer on the bolt on the inside was not so easy. Firstly the bolts are too long, deliberately, so I needed to trim off about 15mm for this chain plate and that makes getting the nut to catch the thread hard even though I have tapered the cut end slightly using a grind wheel. And there there is the fact that these should have been done before the cabin lockers were put in place as the nuts are behind part of the shelf so getting the nut on is doubly hard. Oh, and I'm lying on the centreboard case on my side so that I can use both hands to do the job. It is also dark there so a torch is required and I have the heater on so I'm sweating at the same time. Still, it is done and hopefully the rest will not be quite so difficult.

We shall see.

I didn't have a huge amount of time left after this, I have the first of a series of Christmas get-togethers this evening, this one at the boat club. So I tackled one of the heater drawbacks. The position of the heater is a compromise between being low enough so that I can get the charcoal in at the top and hit enough so that I can get the ash tray off at the bottom. Since heat rises and the air inlet is a foot or so off the cabin sole (that's another fancy nautical word for floor), the result is that the top of the boat gets toasty warm whilst the bottom, where your feet are, stays cold. It is even worse on the side that you feet will spend most of the time on the starboard side as the centreboard case makes this a box without a lid and the cold air just stays there.

In one article I read about heating of boats and enterprising lady had taken a 120mm square computer fan, sown a long sausage of material, put the computer fan at one end and hung the resulting fabric pipe up from the cabin roof with he computer fan blowing air down the tube. When switched on the warm air was circulated down to the sole and mixing with the cold air until no cold air remained.

Now Naiad is a small boat so I bought a small computer fan, just 40mm square and used a length of the 38mm hose I bought to fit into the dust collectors in the workshop.

The fan is mounted on a wooden block that has a 38mm hole drilled right through.

The hose jams into the hole like so.

The wooden block will be fixed to the boat somewhere near the top of the cabin near the heater and wired into the boat electrics. I've used about 2m of hose so that the wandering end can be put into the part of the boat where warm air is required whether that be the starboard footwell or up forward in the sleeping area. The fan is not very strong but it has an airflow of 5.7 cubic feet per minute or 161 litres which is not bad. It is difficult to test right now since I don't have a hatch so the warm air escapes through the open space pretty quickly, nor do I have a convenient 12v power supply yet, but I'll rig up something to see how well it works.