was it water going into the stacks and into the boilers?
There were only three survivors from the HMS Hood when it was sunk by the Bismarck. They had been catapulted to the surface by an enormous gas bubble caused by the exploding boilers.
A Titanic survivor was sucked into one of the funnels as it sank and was pinned against a grate. When the incoming ice cold waters reached the boilers, the resulting explosion blasted him to the surface, where he somehow climbed onto flotsam and escaped death by exposure.
But I had never heard of the Barnham until now, nor that it was the one seen in the footage.
No wonder so many or her crew died.