Originally Posted by PeterM
Surely trim tabs only work when moving...? The faster you go the more they work?
So bow tanks etc solve that problem?
Trim tabs start working the moment you move. But not all ribs are stable at displacement speed. in my case i was in breaking seas a few meters high, every few seconds. tabs help keep the nose down, therefore you plane quicker, if however the waves are so big, you cant get enough speed to make the tabs work, or the lifting effect of the waves on the front lift the bow, negating ability to plane. ur......... well buggered. My only solution would have been weight up front to reduce how much rocking horse the boat could do.
Sand ballast is a brillaint solution, I used to keep one 20kg bag in the front of my 6m american hard boat which was rubbish in a head sea, beam sea and following sea for that matter. One day when it was too rough in a following sea i just ditched it overboard. That small amount of weight changed whole attitue of the little boat. Just like gentleman racers hunton. Awsome boat, with awsome hull, yet £6 worth of sand has obviously made his ride better...
SO to answer TSM question, weight in bow can only be too much if the weight makes the nose go lower than the stern, and then the boat could pitchpole. Otherwise I swear by it in my little experience.