Fay Marine vane steering plans
The air vane needs to be 1 foot wide by 4 feet high and cut from 4mm ply. The blade pivot can be fixed horizontally or can be set at an angle of up to 15 degrees to allow the blade to trail away from the wind. It is advantageous if the blade can be adjusted to either be more upright for light winds, or be angled backwards for stronger winds.