Ships steaming across the North Atlantic from west to east like to keep in the Gulf Stream, which increases their speed by a knot or so at no cost. Pan American's Stratocruisers, flying from Tokyo to Honolulu, are taking the same advantage of the "jet stream," which is the Gulf Stream of the upper air. Last week one of Pan Am's clippers made the Tokyo-Honolulu run in a record 9 hr. 18 min. Its average, point-to-point speed was 422 rn.p.h., and 123 m.p.h. was a gift of the friendly jet stream.
The North Pacific jet stream was discovered during World War II....
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