Recent content by DDW

Still in line for one as soon as they change the rather odd deck plan. Especially for the PNW and its persistent rain, that is not a winning deck plan. My boat is stored two doors up the hill from the factory, so next time I am up there I will stop in and have a look.

Most manufacturers literature show decreasing life with increasing service temperature (above room temp). The optimum service life seems to be fairly low temps, like 40 or 50F, dropping again as you go lower. Same is basically true of lead acid cells as well - high temperature isn't good for...

I looked into this in SF Bay. There is one marina here (Emoryville) which is privately owned slips. The management have kindly posted the complete history of over 30 years now, how much the HOA dues have increase, how much each slip has sold for each time it has sold. From this one can calculate...

You can use these as snubbing winches without the handle. You always load the line clockwise around the drum (C.C. sailing winches are very rare), the drum will turn freely clockwise but the ratchet pawls will prevent it from turning the other. A self tailing winch can be used like a regular...

You cannot do better than the Andersen winches you referenced. I have 10 of them on the sailboat including 4 powered ones. For dockline tending, I wouldn't bother with electric, it won't help much and they are very pricey. I'd personally want the 28ST for a larger boat, also it is two speed but...

One possibility is there is air entraining from the bow, strakes, or other, passing over the transducer location. The fact that it is rhythmic, and in a light chop, suggests this to me. In the same location if you stop does it settle down and show the correct depth? How far aft is the transducer...

One important point: When you mix the thickened epoxy, do not 'whip' it, which will entrain air bubbles. This can cause enough porosity to allow a water path through the epoxy. The thicker you get the epoxy, the easier it is to work with, but also the more likely you have entrained bubbles. A...

Hey Long-Cours, you can't just throw those pictures up without a link to the for sale page....;)

Mine doesn't blow fuses, but doesn't work anymore either. Didn't work well even when new. I'd call the whole arrangement a nuisance.

When a bit gets out of control and starts running around it like that, the bit can quickly work its way in or out of the collet. That situation is hard on everything, not just the hole. The key to prevention is rigidity (a tight hold and control of the tool), and bit clearance (hole ~2x or more...

The batwings mostly retract out of the water. Only the hinge and a very short section of them is wet when they are folded.

I don't know why you'd make them anything but a symmetric foil. They develop an angle of attack only due to the roll of the boat and the boat rolls both directions. I don't see an issue with the pivot point being close to the waterline, as they can angle downward into deeper water. You'd prefer...

You might want to check this paper which has a lot of information about them. There is also an Australian paper. I'd assume you would use a symmetric NACA section as they work in both up and down motion. On a metal boat, pretty easy to retrofit I think. In the paper, they worked less well than...

You can use the step drill even on the thicker partition. Get the larger hole started with the step drill and then continue with the proper sized regular drill. It is the start of the hole which is usually the problem, once you are in a little bit the drill is guided and doesn't chip the edges...

I think you will have very little difficulty in your situation. The boat is well known in the area and desirable. You are near it and if you have the time to show it to a few buyers, it will sell. For that boat, in that area, you don't need a Yachtworld listing.