Currently, in the US, the Coast Guard requires manufactures of motorized vessels under 20-ft in length to incorporate flotation that will keep the vessel and the rated personnel and equipment loads afloat even when completely filled with water. This is accomplished by filling cavities in the vessel with closed cell foam. If you want to read up on it, you can consult the USCG Boat Builders Handbook.
Ena lepa nizozemska tura s čolnom odrezanim na pol.
https://www.youtube.com/watch?v=zaNBKfQCze0




