Through bolting the hull in the Southern Ocean
This morning Abu Dhabi Ocean Racing, completed at sea remedial repairs on the port side mid-ship of its yacht to minimise delamination spread. Hull delamination occurred yesterday when Azzam was sailing against 35 knot winds and four metre swells in the Southern Ocean. The crew waited for daylight and a softening of the winds and Southern Ocean seas before drilling through the hull and bolting its lamination back together.
Azzam and her crew are back sailing and will continue to monitor the situation closely. The team will move out of the low pressure system to avoid the onset of a heavy storm towards the Chilean coast to further assess repairs.
Skipper Ian Walker writes: "It’s amazing how quickly your priorities can change from racing to survival. One minute we were riding the back of a front making 500 miles a day towards Cape Horn getting a real taste of the Southern Ocean and with designs on a 4th or even 3rd place, the next we were genuinely concerned for our own safety as we sat with a damaged hull in freezing conditions 1,700 miles from the nearest landfall.
When the drama started I was on deck with Adil [Khalid] and Si Fi [Simon Fisher] facing 35 knots of wind in the pitch black. We were sailing with three reefs in the main and the number 4 jib. Despite having little sail area we had still picked up some huge waves and were hitting speeds of over 30 knots. Suddenly the call came from below to slow down as they had heard some ‘worrying noises’. On further investigation we confirming the crunching sounds were coming from sheared core material in the hull’s port side.
This in itself was not a problem but more bad waves could rapidly propagate the damage and worse still the outer and inner skins could be breached. This has already happened to Groupama and Sanya in this race with near disastrous effects. The damaged hull shell was flexing like rubber and we needed to stop the impact of the waves on Azzam’s side and try to brace the hull from the inside to give it some support. Trying to stop waves hitting the hull is pretty hard in over 30 knots of wind and large seas but Rob [Greenhalgh] spent hours on deck helming and doing his best. The next job was to chop up some bunks and stacking bays to jam in between the hull and the deck to support the hull panel temporarily.
The rest of the night was spent nursing the boat downwind and hoping things didn’t deteriorate.
After consulting with the boat’s builders and designers we soon had a plan for a remedial repair but it would have to wait for daylight. Believe it or not the repair was to drill through the hull and bolt the hull laminate back together. Fortunately we carry threaded rod for just such an occurrence so Wade [Morgan] and Craig [Satterthwaite] set about getting all the materials ready. They chopped up other carbon panels in the boat to make a whole new ‘inner skin’ to glue and bolt to the sides. By lunchtime we were ready to tip Azzam on its side and send Justin [Slattery] over on a halyard in a survival suit and harness to push 32 bolts through the holes as they were drilled from the inside. I could never have imagined drilling 32 10 mm holes through the bottom of our boat when 1,700 miles from land with no possibility of rescue.
We spent the best part of five hours hove to with the boat on its side to keep the water off the port side while the work was done. We are now back sailing cautiously as daylight turns into darkness. The repair seems strong so far and the crunching noises have stopped. We are currently just edging our way north east for better weather and to edge closer to land. As yet I cannot confirm our plans moving forward.
Currently the safety of the boat and crew remains the only priority and I am considerably more relaxed about that now than I was 24 hours ago. Only in adversity do you really get the full measure of a team’s strength and today everybody played their part in stabilising what could have been a very serious situation.