Thank you all. Sorry, if I was unclear. What I'm asking for is some sort of quantifiable amount to help me consider the issues. The speeds...
By small boats I a sort of full displacement, human powered motorsailer, a 50/50 row sail boat, like a Solway Dory sailing canoe or one of Atkins...
I've been struggling to get any real numbers on it. The calculators I can find for arrow range are made more much lighter arrow weight, around 77...
'they could tow their maximum load of 22 tons at 10 mph even with a single horse' I was actually reading about that last night, trying to find...
I have this theory that all the important concepts an enthusiastic amateur could come up with probably wrapped up by the 1950's, that the future...
Fantastic, thank you. Now I just have figure out how to put this information to use when there is no bank to walk on.
So, it's not an unreasonable rough estimate that in these human scale numbers: small boats, low total speeds, etc., due to the effect of both...
It would seem to me that a paddle, oar of propeller is just a very low head pump, and that by moving the boat by pumping water, you have to do the...
So, what you're saying is that it is entirely propulsive efficiency. The goal is to generate, say 30 lbs of force. It takes X amount of energy...
Does tow path towing take significantly less energy than on-boat propulsion (oars, propeller, etc.) for the same speed? If so, why? In my...
So I am barking up the right tree then, as it were. :) I'm frustrated with myself for reading these articles, and those kind of books (though...
Short version: A sail is a single part of a highly integrated system. Is it even possible to realistically compare different sails if they are...
