Tests with specially instrumented NASA Boeing 737 and 727 aircraft together with several different ground friction measuring devices were conducted for a variety of runway surface types and conditions. These tests are part of joint FAA/NASA Aircraft/Ground Vehicle Runway Friction Program aimed at obtaining a better understanding of aircraft ground handling performance under adverse weather conditions and defining relationships between aircraft and ground vehicle tire friction measurements. Aircraft braking performance on dry, wet, snow and ice-covered runway conditions is discussed as well as ground vehicle friction data obtained under similar runway conditions. For a given contaminated runway surface condition, the correlation between ground vehicles and aircraft friction data is identified. The influence of major test parameters on friction measurements such as speed, test tire characteristics, type and amount of surface contaminant, and ambient temperature are discussed. The effect of surface type on wet friction levels is also evaluated from comparative data collected on grooved and ungrooved concrete and asphalt surfaces.
Evaluation of Two Transport Aircraft and Several Ground Test Vehicle Friction Measurements Obtained for Various Runway Surface Types and Conditions. A Summary of Test Results from Joint FAA/NASA (Federal Aviation Administration/National Aeronautics and Spac Administration) Runway Friction Program
1990
312 pages
Report
No indication
English
Aeronautics , Air Transportation , Friction measurement , Runway conditions , Transport aircraft , Aircraft tires , Asphalt , Concretes , Ground tests , Aircraft brakes , Boeing 727 aircraft , Boeing 737 aircraft , Contaminants , Controllability , Grooves , Ground speed , Ice , Snow , Temperature effects
Aircraft and Ground Vehicle Friction Measurements Obtained Under Winter Runway Conditions
SAE Technical Papers | 1989
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