Developing Improved Civil Aircraft Arresting Systems (2009) / Chapter Skim
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Appendix D - Active Arrestor Calculations
Appendix D - Active Arrestor Calculations
Pages 178-180
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From page 178... ...
As shown in Figure D-3, the maximum lateral load nearly reached 90% of the limiting lateral load for a strut-cable coefficient of friction of approximately 0.7. Therefore, on the basis of preliminary investigation, if the maximum tension in the cable is limited to the critical value, lateral collapse of the landing gear can be prevented.
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From page 179... ...
Input Parameters to Vary Output Parameters from Models Exit speed – arbitrary Geometry • Distance between brake units • Slack in cable Maximum tension in cable Strut-cable coefficient of friction Aircraft type – B737-800 • Limiting lateral load • Limiting longitudinal load Aircraft braking condition • Braking • Skidding • Free-rolling Reverse thrust – arbitrary Stopping distance Max lateral load Max longitudinal load Primary Tension Primary Tension Landing Gear Braking Unit Braking Unit Figure D-1. Cable-based arrest of aircraft with tension in cable Tc1.
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From page 180... ...
were obtained using a strutcable coefficient of friction of 0.40 to illustrate force ratio trends. Furthermore, the braking coefficient was 0.25 with no reverse thrust.
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