As soon as the gust has passed trim the sheet in again to keep power on.

Power boat broaching. Planing craft can have a dynamic broaching problem. Clearly what the writer is describing is what is known as broaching a condition in which a boat runs down the crest of wave gathering speed and as it meets the backside of the next wave ahead buries its bow in that wave. In heavy seas this could cause the boat to be knocked down.

The surf boat slews sideways at the bottom of a wave capsizes and throws the crew overboard. I had to explain to him that virtually any boat will broach in high following seas if you try to run too fast. All boats can broach if they are driven badly and most stories about a certain make of boat being prone to broaching are only true to a certain extent.

This is quite common on dinghies and also on larger keel boats especially when using spinnaker. In a power boat you have an advantage that sailors dont have. If you do power over the back of a wave be careful of broaching.

Broaching The unplanned turning of a vessel to expose its side to the oncoming waves. Broaching is the situation wherein when you bury the bow into the backside of a wave it forces the boat to veer off often uncontrollably. Too much sail for the weather conditions the effect can heal over the boat to such an extent that the helmsman no longer can maintain steering.

Trimming the motor fitting a foil regardless of the brand or trim tabs will make little ot no difference. Controlling a broach is a function of controlling boat speed. Fit a larger rudder.

Broaching is a term used to describe what happens when a boat runs down the face of a wave digs into the trough at the bottom and then slews sideways. If you have ever watched a surf boat race you might recall seeing a broaching situation. When you reach the bottom the boat can be forced sidewards and may be rolled.