What surprises me perhaps most
throughout this while discussion where we have gone from problems in mild conditions to very serious ones, is that at of Plas Menal
Let's look at the basic facts: 6m Tornado, weather partly cloudy, visibility fair (1-4 miles), wind force 5 (fresh breeze - 17-21 knots), wind direction 2030 (SSW), sea state slight (0.5 to 1.25m), swell 1.0m.
Capsize and inversion
AI intentionally caught up with a wave and drove her RIB on the back of it. She then caught a second wave, which started to take her further south. Seeing the worsening sea conditions ahead of her, she realised that she was sailing in to danger and needed to get back to the north towards the other RIBs. She turned RIB 6, which slowed, allowing the wave behind to catch it up and lift the stern. The starboard shoulder of the RIB “dug in” to the back of the wave ahead, slowing it rapidly and capsizing it to starboard with a tripping motion.
The AI recalled hearing the engine race as the propeller came out of the water. The AI was thrown clear of the RIB, and the “kill-cord” causedthe outboard motor to stop. Some of the passengers were also thrown clear, but several others surfaced in the air pocket beneath the hull of the upturned RIB which had inverted on top of them.
One student was struck on the head as the RIB capsized, and became slightly dazed and confused. The others beneath the upturned hull quickly escaped to the open water, briefly leaving the injured student alone beneath the inverted RIB. However, he soon realised that he needed to escape, and within a few moments he too was able to dive clear of the RIB.
The AI and the passengers all remained fairly close to the boat, but most had difficulties holding on to it.
1. what was the correct maneuvre to return to the other ribs?
2. should it have capsized so easily in such not particularly difficult conditions? Ie. was there a design problem?