That is where common sense should come in. Assuming that the speculation and the great "hearsay" in this thread is true -- that the owner actually said that it was his practice rudder etc then I think one can conclude that some form of significant penalty is appropriate. Maybe that penalty is to permanently ban the boat by removing its one design certificate. Or advise the owner that he will be, his boat and sails, will be the subject of complete automatic inspection before and after every race day for any class event for the next 3 years. Penalties do not have to be a person ban if you do not have the proof of actual race violation but you do have admitted violation by the boat of its one design rules.Agree, but in this instance it appears that the practice rudder broke in practice. So not "racing."
So where does this level of cheating get you. Some lead in a king post gets you several years ban. isn't this worse?
If I was racing against someone who was found to have made a rudder out of carbon fibre I would be looking at rule 69 or am I maybe naive and this sort of shit goes on all the time?
Just a thought.