. Automotive industries . tios were alike to within one per cent, (two being and one ). In each test threetrials were made, with different drivers, so as to elim-inate the personal equation. In the first test the truckswere allowed to coast down a slight incline with gears inneutral and all brakes released, and to run themselves outon the level at the bottom of the decline. Both the dis-tance coasted on the level and the time from the startto the stop were measured. The results, averaged, wereas follows: Distance coasted Time fromTruck type. on level. start to stop. Chain 49 ft. 2 in.
. Automotive industries . tios were alike to within one per cent, (two being and one ). In each test threetrials were made, with different drivers, so as to elim-inate the personal equation. In the first test the truckswere allowed to coast down a slight incline with gears inneutral and all brakes released, and to run themselves outon the level at the bottom of the decline. Both the dis-tance coasted on the level and the time from the startto the stop were measured. The results, averaged, wereas follows: Distance coasted Time fromTruck type. on level. start to stop. Chain 49 ft. 2 in. 1 min. 16 sec. Worm 26 ft. 7 in. 1 min. 57 sec. Dual red 45 ft. 2 in. 1 min. 16 sec. In the second test, held on Exterior Street, the Bronx,the trucks were started from a point at the bottom of ahill averaging 16 per cent for its entire length of 80 yards,there being one point, about 30 yards from the top, wherethe grade is 18 per cent. The three trucks were startedfrom the bottom of the hill, one at a time. Each was put. Horizontal section through rear axle, showing mounting and arrangement of bevel and spur gears in double reduction January 6, 1921 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE 13 in second gear as soon after the start as possible, andnote was taken of the points where the drivers wereforced to shift back to first gear. The time taken forthe complete ascent of the hill was also taken. The re-sults, averaged, were as follows:Distanceto shift Time to shift Elapsed Truck type, to 1st speed, to 1st speed. time. Chain 153 ft. 5 in. sec. 51 sec. Worm 16 ft. 7 in. sec. 57 sec. Dual 104 ft. 5 in. sec. the third test all of the trucks were run, one at atime, part-way up the hill and left standing for 2 order to allow the oil to drain off the gears of thefinal drive. The drivers were then given the signal tostart and to ascend the hill as quickly as possible, nota-tions being made of any changes in gear. All three trucksascended the hill
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
