Just a question. Doing some work on the floor inside the SO43DS. There is a storage box under the galley floor which I have taken out as that whole section needs to be repaired/replaced. Under the box, there is no support to the floor. It is supported to the sides only. The floor looks very inviting to stand on but I was genuinely wondering how strong it is? I am about 100kg and standing on the hull having it crack whilst in water is not ideal ;-)
Ummm. The engine is only a few feet away. I know it can handle that weight. Lol. I think you will be ok on the fiberglass hull. The wood floorboards might struggle with 100kg in a small focused spot though. Lol.
Thanks both. I had hoped it would be strong enough but you never know and once cracked, the fact it is in water....bit late. Also surprised storage box not supported to the floor. Ah well. Onwards and upwards. Trying to get floor piece out. May end up snapping it anyway (it is already in pretty bad shape).
The hull is plenty strong. If your boat has a liner, areas of the liner pan may not be that strong. The liners are very tough in areas that provide structural support for cabinetry, floor boards, etc... but the pan areas between structural grid may be flimsy. The hull underneath the liner pan is very strong though.
I'm guessing that my boat has an underwater area around 50m2 and must displace at least 12,000kgs. I imagine that means each m2 underwater is resisting a push of about 240kgs.
I've avoided proper units (i.e. Newtons) and used incorrect terms such as "push". I thought it might make it simpler to indicate that when standing on a 1m2 section of hull it might already be resisting an upward force of around 240kgs.
I know that this is a hugely simplified view ignoring variation in depth, angle of hull. I only intended to show that hulls are built to withstand large forces. Imagine what happens when the hull falls off a wave.