Coasting Test 滑行试验，是让汽车加速到某预定车速后，摘挡脱开发动机，只靠汽车的动能继续行驶直至停车的试验过程。通常在汽车试验场的高速直线道上进行。在试验中，可测得汽车的滑行距离，并可用五轮仪记录滑行过程中车速与时间的关系曲线。通过滑行试验，可以检查汽车传动系和制动系有无阻滞现象，还可根据车速与时间的关系曲线求得汽车的滚动阻力和空气阻力。
利用底盘测功机模拟道路滑行试验，测定出汽车的传动系阻力、轮胎滚动阻力及它们的速度影响系数。
A coasting performance test is simulated on a chassis dynamometer, the transmission resistance, rolling resistance of wheels and their speed factors are measured.
采用多车速滑行试验法和功率法对两段法计算结果进行验证，证明了采用两段滑行试验法计算汽车滚动阻力系数和空气阻力系数的正确性。
Then, multi-ample coasting-own data and power calculation method were applied to verifying the results. The results show that the two-stage coast-down test method is correct and feasible.
它被一架改建的波音747型飞机抬到高处而且仅用于进场滑行和着陆试验。
It was carried aloft by a converted Boeing 747 and used solely for glide-approach and landing tests.
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