It has always been difficult to estimate exactly the influence of the runway condition on the take-off and landing distance of airplanes. This problem has been aggravated by the jets entering the air traffic, for fast jets have high wing loadings and, therefore, high take-off and landing speeds. At high ground speeds, the runway contamination changes the value of the tire-to-surface friction coefficient. The contamination may further increase the drag in consequence of the forces required for fluid displacement. Finally, the hydrodynamic forces acting on the wheels in slush or water can, at high speeds, lift the tires completely off the ground. All these conditions have been examined thoroughly in tests and calculations. The report gives a survey on the latest investigations and on the consequences for practical flying operation which follow these results and for which appropriate safety precautions must be taken. The Flight Mechanics Panel requested this Study and procured, through the Consultant Program, the services of Mr. H. Herb to conduct the Survey and write the Report. (Author)
Problems Associated with the Presence of Water, Slush, Snow and Ice on Runways
1965
69 pages
Report
No indication
English
Air Transportation , Aircraft , Snow, Ice, & Permafrost , Runways , Ice , Aerodynamics , Symposia , Hydrodynamics , Snow , Jet planes , Velocity , Contamination , Air traffic , Flight speeds , Safety , V/STOL aircraft
Problems associated with presence of water, slush, snow and ice on runways
Engineering Index Backfile | 1965
|Studies Concerning Snow, Ice and Slush on Runways
NTIS | 1975
|