STARTING AND STOPPING

Shannon News, 8 June 1928, Page 2

STARTING AND STOPPING

In recent tests a car was driven at 33 m.p.h. stopped every quarter of a mile without sliding the wheels, and then accelerated to 35 m.p.h. again, wore one-half the tread design away in 108 miles. The same car, driven at the same rate of speed, but stopped every mile, wore one-half the tread away in :UOO miles. This indicates conclusively the serious effect of starting and stopping. Added to this is i the possibility of the present-day automobile to jump from a standing start to 30 miles per hour in a few seconds, and of four wheel brakes bringing the car to a dead stop in half the distance that it formerly took. Even two wheel brakes are more powerful , than ever before, and in this case, to stop the car in a short distance like four wheel brakes, it is often, necessary «to slide the wheels. Four wheel brakes do not cause sliding as frequently, and distribute the wear more evenly; because of quick stops, the tread rubber is worn away rapidly in either case.