Balsa Woodstock

摘要

Charlie Reeves looks around the north end of Christopher Columbus State Park and searches for the right words. The spring air outside Tucson is redolent with vaporized castor oil and filled with the whine of single-cylinder engines. A chorus of Doppler-shifted droning follows a handful of balsa wood control-line model aircraft as they whiz around in 60-foot-diameter hemispheres. Sunlight glints off steel control lines that trace complex aerobatic maneuvers. An engineer by trade, Reeves would like to be precise, and this is not just another stunt contest.