That night Garry had taken the saddle and thrown it into the furnace of the hot, water boiler.
The large gash in the Osborn's hull caused the water to hit her hot boilers which exploded and immediately killed two crewmen.
He lit the lantern at the rear of the machine and by the time the rain came hissing upon the hot boiler, he was ready.
High steam generation rates are possible under other circumstances, such as boiler-drum failure, or at a quench front (for example when water re-enters a hot dry boiler).
The ship broke in two, and cold seawater made contact with her hot boilers which had been running at full steam, causing them to explode.
The large japanned bathtub took up much of the space, but was almost overshadowed by the huge heating tank on the fuel-burning hot boiler.
A sudden influx of cold water into a hot boiler can cause it to crack.
A wisp of smoke drifted up from the stack and the metal of the hot boiler clicked quietly.
About 17 to 20 minutes after being hit Aragon went down, and she suffered a second explosion as the cold seawater reached her hot boilers.
This avoids any risk of vacuum collapse, when a hot boiler is allowed to cool down out of service.