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"NE Sailboat" writes:
I would love to get a wind vane system ............ but at $3,000 ??? Probably won't happen. If $3k seems like an impossible dream, then perhaps you could never really afford a cruising boat anyway. I wonder if there is a Poor Man's Wind Vane... a system that could use the apparent wind to steer and the controls would go to the tiller in the cockpit. It certainly would be. Ya just gotta know how! Lauri Tarkkonen wrote: The problem is that if you want a windvane that works in almost any conditions and lasts for years and years and does not let you down when you have gone in the cabib to make some coffee and sandwiches or to goo to the loo, then it is not a cheap system to build. It need not be very expensive though (in terms of what boat stuff costs, anyway). The main expense would be getting the frame strong & rigid enough, and after that, providing low friction bearings to reduce working drag down to the point where there is sufficient power to control the helm. If you think that the power generated by the wind will be the one used to actually steer the boat, then you need some wind or your wane must be very big. In the best windvanes the steering action is geretade by the boats speed through the water with a servo pendulum oar and the wind is just controlling the angle of this oar to the water. Exactly. The geometry of these must be very cleverly worked out in coordination with the boat's steering characteristics. They say, that a poor man can not afford to buy cheap,he must buy quality. Or know how to make his own. I would not recommend anyone to depend on a cheapo windvane, this does not mean, that one should not be avare of ways to make tackles for temporary use, as it is possible you need it for various reasons while underway. It's easy enough to go astray with top quality equipment. Gear that is difficult to set on course properly, does not follow a course accurately, is quirky about what condition it will work at all, suffer minor breakdowns, etc etc, will be more aggravation & potential hazard than it's worth. Fresh Breezes- Doug King |
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