I am building a new rudder system (blades, boxes, tillers, tie-bar) and was wondering what geometry other mosquitoes found to be the best. In particular, I am looking for the angle the tillers need to be angled in at to give ackermann like steering.

If a boat were a car I would angle them towards the centreline of the boat perpendicular to the centreboards. But leeway angle stuffs this up and tends to move this point forward. I have read that the best point to aim the tillers at is perpendicular to the bows at the centreline, but this seems a long way forward when compared to ackermann theory.

The reasons for this change include:
- Broken blade (old timber blades didn't have any laminate on them!)
- Heavy steering (not weather or lee helm, it gets heavy when manoeuvring)
- Dislike kick-up/rotating system when sailing in Moreton Bay with lots of jelly-fish

Anyway, any advice on this would be greatly appreciated.

Nick.