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2. Track gauge - Wikipedia

   en.wikipedia.org/wiki/Track_gauge

   The most common use of the term "track gauge" refers to the transverse distance between the inside surfaces of the two load-bearing rails of a railway track, usually measured at 12.7 millimetres (0.50 inches) to 15.9 millimetres (0.63 inches) below the top of the rail head in order to clear worn corners and allow for rail heads having sloping ...

3. Track geometry - Wikipedia

   en.wikipedia.org/wiki/Track_geometry

   The horizontal alignment (or alinement in the United States) is done by using a predefined length of string line (such as 62-foot in the US and 20 meters in Australia [5]) to measure along the gauge side of the reference rail. It is the distance (in inches or millimeters) from the midpoint of the string line to the gauge of the reference rail.

4. Length overall - Wikipedia

   en.wikipedia.org/wiki/Length_overall

   LOA (length overall) & LWL (waterline length) Detailed hull dimensions Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline.

5. Rail profile - Wikipedia

   en.wikipedia.org/wiki/Rail_profile

   The rail profile is the cross sectional shape of a railway rail, perpendicular to its length. Early rails were made of wood, cast iron or wrought iron. All modern rails are hot rolled steel with a cross section approximate to an I-beam, but asymmetric about a horizontal axis (however see grooved rail below). The head is profiled to resist wear ...

6. Pontoon bridge - Wikipedia

   en.wikipedia.org/wiki/Pontoon_bridge

   A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.

7. No. 2 Duke jumps all over rival North Carolina, rolls to 87 ...

   www.aol.com/no-2-duke-jumps-over-015025219.html

   Cooper Flagg had 21 points, eight rebounds and seven assists in his Duke-North Carolina rivalry debut, helping the second-ranked Blue Devils roll past the Tar Heels 87-70 on Saturday night.