Tests with a Heavy Load Skidding Test Vehicle Incorporating a Mark I Maxaret Anti-Locking Brake System to Determine Braking Force Coefficients Between an Aircraft Tyre and Various Wet Surfaces

摘要

The report gives the results of five test programmes with a Heavy Load Test Vehicle to determine braking force coefficients on the following wet surfaces: - smooth concrete (Crowthorne), fine cold asphalt (Crowthorne), quartzite macadam (Crowthorne), 3/8 in. gravel carpet (Crowthorne), wet grass (White Waltham), asphalt with slurry overlay (Wisley) and brushed concrete (Heathrow). The test wheel was fitted with a Mark I Maxaret anti-locking brake system. This system had the effect of improving the braking performance, over that obtained for locked wheel configurations, under all test conditions. The anti-locking system showed to increasing advantages as the speed of test was raised. (Author)