A new and mighty gadget for aircraft, good in peace as well as war, was taken out of military wraps last week. It is an automatic navigation instrument that helps a flyer to know where he is at any instant, even in bad weather. The machine, officially known as the Air Position Indicator, but called "The Brain" by its makers, greatly reduces the amount of calculation a navigator needs to make.
The instrument was developed by a famed navigation expert, Colonel Thomas L. Thurlow, who was killed in an air crash last year, and by...
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