The mechanical-minded young and not-so-young who fly model airplanes in tethered circles have a new mark to fly at. Last week Sherman Holt, 14, of Fayetteville, N.C. kept a model plane in the air for 8 hrs. 31 min. and 50 sec., leaving his nearest competitor more than seven hours behind.
Farm Boy Holt built his first (5¢) model at the age of six. Since then he has been working toward bigger projects. A few weeks ago he had the idea of refueling his latest model through a plastic tube running up the control...
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