Aakron Boats have just released a new 4.2m alloy RIB which features a floodable keel chamber. 'While the concept is not new we didn't realise how good it would work for a light alloy RIB', says Lloyd Darroch. 'Normally such a boat is too light to have a deep V hull. The buoyancy of the V will lift the RIB too far out of the water so it becomes unstable when stationary. The floodable chamber lets a lot of water into the bottom of the V causing the boat to settle lower and the pontoons to become engaged with the ...