We've built numerous "Buoyant Fendered Topside" boats and having the facility to build them in house allows us to manufacture the shape to suit. The FRCs and MoR SOLAS vessels have a larger section as buoyancy, slamming and dropping are key to the craft's survivability in the harshest of environments; we have however produced craft with the same principle but with a half rounded cross-section rather than rectangular to give the aesthetic effect of a traditional RHIB
The benefit of this type of collar is not only its impact resistance and durability but also the fact that it bonds/fastens to the outboard side of a raised hull side; thus effectively increasing the useable deck width, bearing in mind an inflatable collar would sit half in/half out of the boat taking up valuable deck space.