And I forgot to mention something else. Everything is not always a maximum speed requirement, there are many applications where speed is not the...
There is another phenomena which has not been addressed much which may become a reality and that is sails generating their own wind. If you watch...
I have e-mailed another engineer end explained what I had in mind - which is what I am criticized here by certain individuals for. His reply was...
[ATTACH]
Owley, I like the idea of free standing masts as well. I'm not a marine engineer, but it seems with most sails with a boom to the stern is that...
You make assumptions which I never did do. The first time I saw the aft mast was when Brian Island posted on it. Nobody yet have taken the time...
One of the days the wife and I sailed with the little tri on the Vaal, which was more of a drum that a boat, there was a big mono bearing down on...
Hi Tiny Turnip, it does not matter if someone disagrees with me or not. When I joined the forum some years ago, there were even then still...
To make the model work I mounted 4 roller bearings on the sides and it sits on a solar panel. Without wind it does not move forward or backward....
If you widen it a bit and add a trolling motor like Deering suggested, you can also add a solar panel. By monitoring the current supplied by the...
One must never assume anything is optimized, or has reached it's limits. Not too long ago it was assumed ridiculous that one can fly... today it...
Basic advantages - Relative short masts (if desired) with a good center of wind force on full sails. Stand alone, no rigging. Furling in and out...
Running, if the spinnaker head is let out some the sail makes less upward lift when it becomes more vertical, making more forward force and less...
You won't see anything because you see a flat earth. I'm trying to indicate a principle. You're asking how long is a string, like what is the...
Running all three sails used for optimal speed [ATTACH]
Over 90 deg it becomes interesting, This is roughly at 135 degrees [ATTACH] or using the spinnaker with the windward sail furled [ATTACH]
One at about 45 deg to wind [ATTACH] As you can see bot sails still give full performance
There are two sails, making double the power. The model is scaled roughly for an 8m catamaran at 6m wide and mast height is 10m of which thumb...
This is the sails at 20 deg off the wind [ATTACH] Both the sails make power, but the one on the left is trimmed in. The luff is canted directly...
It's called a rubber duck :D Let me show you. This is the wind tunnel, a big fan I have. [ATTACH] The wind is not the same as on the water...
