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Most airports do not have a specific speed limit for taxiing (though some do). There is a general rule on safe speed based on obstacles. Operators and aircraft manufacturers might have limits. Typical taxi speeds are 20–30 knots (37–56 km/h; 23–35 mph). [1] [2]
In areas that receive significant snow and ice, most agencies use a maximum cross slope of 6 to 8%. While steeper cross slope makes it difficult to traverse the slope at low speed when the surface is icy, and when accelerating from zero with warm tyres on the ice, lower cross slope increases the risk of loss-of-control at high speeds ...
Worked as a rack railway until 1868 when the Reuben Wells was built to work the hill by adhesion. 1 in 17.1 (5.88%) Docklands Light Railway, London, England: On the ramp from the original London and Blackwall Railway viaduct to the tunnel leading to Bank. 1 in 17.5 (5.7%) Mukilteo, Washington, United States, Boeing Factory Spur
Slope may still be expressed when the horizontal run is not known: the rise can be divided by the hypotenuse (the slope length). This is not the usual way to specify slope; this nonstandard expression follows the sine function rather than the tangent function, so it calls a 45 degree slope a 71 percent grade instead of a 100 percent. But in ...
Therefore, the maximum warp parameter is used to prevent the critical harmonic rock-off condition that may result in the trains rocking back and forth and derailing following wheel climb. [ 9 ] In North America, the specific distance used for measurement to ensure that the difference in crosslevel of the track is within the permissible warp ...
Pavement sloping: On straight sections of the highway, the roadway is to have a cross slope of at least 1.5%, and preferably 2% to ensure proper drainage, with up to 2.5% in areas of heavy rainfall. The cross slope of both the left and right shoulders should be between 2% and 6%, but not less than the main lanes.
Stoosbahn in Switzerland, with a maximum slope of 110% (47.7°), is the steepest funicular in the world. [25] The Lynton and Lynmouth Cliff Railway, built in 1888, is the steepest and longest water-powered funicular in the world. It climbs 152 metres (499 ft) vertically on a 58% gradient. [26]
Taxiing (rarely spelled taxying) [1] is the movement of an aircraft on the ground, under its own power, in contrast to towing or pushback where the aircraft is moved by a tug. The aircraft usually moves on wheels, but the term also includes aircraft with skis or floats (for water-based travel).