PERAHU TERJANG OMBAK TIGA METER SAMPAI KEMASUKAN AIR OMBAK MENGAMUK 16/10/2023

[@carmelpule8493]

The performance of an outrigger boat as seen in this video needs to be carefully handled. While going into the wave, as long as the boat is kept level with the outriggers equally on the surface of the water, the boat will raise its bow and as the crest of the wave travels under the. boat, the transom would rise and slams the bows down into the water. At all costs the bow of the wave must not be permitted to sway laterally so that one of the outriggers will dig into the water as the side drag of that outrigger coupled with he moment arm of the spreaders will cause such a large rolling torque that the boat will certainly capsize. One shoul dnot enter the incoming wave at any high speed but should let the boat ride the wave as gently as possible so that it rides the wave in a slow gentle manner and avoid digging its bow in the oncoming wave to have a high upward acceleration. It is more dangerous to enter the bay going with he waves, One may be lucky to have enough power to surf with he wave but with an outrigger boat this is not advisable as if it happens that the boat Broaches where the transom is lifted up , the bow digs in the water and the boats tles sideways where an outrigger dips too much in the water , then the side ways movement of the boat or the wave will cause a lot of drag and the boat will capsize. Broaching is one of the most dangerous situation in any boat but with an outrigger which digs into the water as it has little buoyancy to stop it digging then the lateral drag will cause a massive lever rolling effect and the boat will roll over. In these boat one should have a fuller bow so that the bow will not sink into the water and a lot od side area is presented as the boat will pivot around the bow and it will roll over. For greater safety, going with the wave, the steering of the boat should be improved by a rudder behind the propellers so that the rudder will keep biting, Also a sea anchor to slow the boat when going with the wave would be useful. as without a sea anchor or a large rudder, the transom wil tend to overtake the bows when on the peak of a wave. Surfing on the wave with an outrigger having little buoyancy if the boats raises its transom and tilts and dips the outrigger float, then the lateral/side drag on the flat will roll the boat over. I would say that a powerful sea anchor towed three lengths behind behind the boat and moving as slow as possible when going with the wave should keep the boat motion at 90 digress to the wavefront without rolling the outriggers. I would say that a lot of information needs to be gathered about that bay, and the nature of the wave, but there is a lot of " engineering" that could be introduced to hold the boat straight when riding the wave going out or going into that bay. A self bailing deck just above the water line would help enormously. There is such a lot to experiment with, and while a single hull is safer, in going into that bay, I am confident that there is a lot to be done on those outrigger boats, including a better and more sensitive steering system. not relying on a rudder which is not " blown" by the propellers. for a better change of steering momentum hence response. They are brave people who work so hard to earn a living.