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Runway rolling and braking friction

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In case some one wants to edit SIM1.DLL here is a literature survey of the data available.Runway Friction Sources: as listed R.S. Shevell dry concrete wet concrete ice hard turf short dry grass long dry&short wet grass long wet grass soft ground Braking Friction 0.4 to 0.6 0.2 to 0.3 less than 0.1 D. Stinton, Design Braking Friction 0.2 Rolling Friction 0.02 0.04 0.05 0.08 to 0.10 0.13 0.10 to 0.30Torenbeek Braking Friction 0.35 Rolling Friction 0.02 0.04 static friction 0.93-0.0011*(tyre pressure/psi) Toms(1947) Rolling Friction 0.035 0.05 Dommash (1951,1957) Rolling Friction 0.02 0.04 0.5 0.1 0.10 to 0.30J.T. Lowry Braking Friction 0.5 to 0.7 0.375 Roskam 0.02 0.04 0.05 0.1 0.10 to 0.30And for an actual readable copy DL this SS :-)

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