Hard ponton rib is the way to go!?

[Fjordrafting]

There are some trouble having pontons with air on a boat. I have seen rescueboats with hard pontons. They probably do not flex, but fitted higher I think it is a good idea. Who makes these ribs, and are they called ribs anymore?
Martin

[codprawn]

This was talked about recently - these boats are mainly used in the oil industry etc where they bash up against oil rigs etc.

Unless you really need something totally indestructable air is the better way to go - lighter and far more bouyency