quote: "I design a cell to not fail and then assume it will and then ask the next 'what-if' questions," said Sinnett. "And then I design the batteries that if there is a failure of one cell it won't propagate to another. And then I assume that I am wrong and that it will propagate to another and then I design the enclosure and the redundancy of the equipment to assume that all the cells are involved and the airplane needs to be able to play through that."
quote: Do have to give them props for that! Despite the failures, the aircraft made it to safety just fine, and the fire didn't seem to spread throughout the whole craft. That containment of the battery fires is indeed excellent engineering.