Boeing 787 Burning?
A Boeing 787 terminated today its domestic flight in Japan due to burning of one of its batteries after having flied for 15 minutes.
Probably, when they designed 787, engineers correctly calculated a necessary amount of electricity to operate this new jet plane which consumes more electricity than any other planes.
So, they must have selected batteries capable of providing enough electricity for various devices loaded on a plane. But they must have also tried to reduce weight of the plane. Accordingly, the batteries they adopted must have a large capacity but a light weight. And this lightweight might mean less protection against heat generation during provision of electric current from the battery.
And in an actual flight, a pattern of use of electricity must be very different from what was observed during a test of those batteries. In a test, they must have checked that each battery could withstand without becoming too hot while providing a maximum amount of electric current to equipment.
But, too large overshoot of output electric current can happen in a real situation where airplane systems or passengers switch on and off devices in an unexpected manner so that some battery is heated to burn eventually.
Anyway, the keyword is humbleness. Even the space shuttle spacecraft suffered a big tragedy a few times sacrificing precious human lives. The Boeing 787, one third of whose main body is built based on Japanese technology, must be more carefully reviewed technically with a focus on an influence of bad cost reduction efforts.
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Luk 1:16 And many of the children of Israel shall he turn to the Lord their God.
Luk 1:17 And he shall go before him in the spirit and power of Elias, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord.