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[[circled]]58[[/circled]]

heavy and quick downward swing gives the half turn that makes the crackings of the exhaust begin that harsh beat on the ear drums. 

The "ack emma" has leaped back quickly from the revolving propeller, which at the start is turning idly at 350 revolutions per minute. The machine is facing the hangars and to test the motor the throttle is pushed forward and you keep you eye on the "rev. counter" till the pointer indicates at least 1325 R.P.M. If satisfactory you wave to the mechanics who grab the tail and swing you around so that you head into the field. ^[[No brakes.]] Then you look around for other machines and "taxi" out into a position facing into the wind. In taxiing you steer [[strikethrough]] A [[/strikethrough]] on the ground and it's some job. Give it an inch of rudder and the old boat'll take a mile around the turn. He hickory stick that acts as tail skid gets set into one position for the time being and you must