Advancing the discipline Luckless I’ve been involved in boat design for a good while now, and I am also professional software developer, with...
Does this new aluminum boat have paint on it? Using a mold release wax on the aluminum prior to doing the layup would probably leave the aluminum...
Based on what I have read, epoxy resin will stick to aluminum, but polyester resin will not. Since polyester resine will not stick to cured...
Very nice job Pistnbroke. What is the diameter of this rod or pin? is this plenty strong? and width of U sections? ~ Michael
When looking at trade-offs between beam and draft, I often consider the semi-circle mid-ship section as a conceptual reference. I consider, am I...
The experimental curve in Fig. 1 of Leo’s Part 5 Report gives us real data on the Wigley hull regarding part of what we have been speculating...
Tom, when I said ...“I don't want to take the position that suction makes a significant effect on the vertical position either.” I wanted to...
BTW, I don't want to take the position that suction makes a significant effect on the vertical position either. I will take the position that...
Daiquiri, you are right to ask for a definition of the terms. I've been a bit sloppy with its use. ... A low pressure relative to atmospheric...
Messabout, that is a nice simple demostration, I like that.
Mat-C, pinning down the boat’s relative speed is important. Here, it seems you are concerned displacement mode, well below hull speed. I...
so, what role do you think the fairing plays in terms of producing forces? Is the faring producing the suction?
Holed Hull Easy, I think this is a unique and important observation. From this observation, I would draw a conclusion that there is a...
Messabout, here is Tom's link to a relevant diagram given earlier in the thread. It presents a sketch which is more along the lines of what I...
Mat-C and Messabout, there are many forces that come into play when trying to understand any real life fluid dynamics problem. As with any...
Daiquiri, I have not read the paper, so I'm only speculating, but I thought that it was refering to the fluid entering and exiting the same hole,...
Gonzo, I would readily agree that the holes would give unreliable readings. I was only making comments in support of Tom Lanthorp’s explanation of...
LOL,... well, following that line of thought, speed boats use steps to elimination of the suction in a similarly way to what a hole might....
One of the issues on the hole-drilling experiment is that the act of observing purturbs the observable. The hole would eliminate the suction,...
The U.S. government has been funding the development of fuel cells for many years. These are a type of battery where the plates are a catalyst,...
