If a man were to fly 10,000 miles annually in regularly scheduled U. S. transport planes, he might suffer a crackup in the 20th year; might be killed in the 106th. Were the same man to cover the same distance in random flights (sightseeing, joyhopping with friends, et al.) he must anticipate an accident every 7.4 years, prepare for death in the 37th. This according to the civil air accident report for July-December 1929, published last week by the aeronautics branch, Department of Commerce.

All civil aircraft...

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