enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Project HARP - Wikipedia

   en.wikipedia.org/wiki/Project_HARP

   HARP 16-inch (410 mm) gun at its test site in Barbados (Coordinates. Project HARP, for high altitude research project, was a joint venture of the United States Department of Defense and Canada's Department of National Defence created with the goal of studying ballistics of re-entry vehicles and collecting upper atmospheric data for research.

3. List of steepest gradients on adhesion railways - Wikipedia

   en.wikipedia.org/wiki/List_of_steepest_gradients...

   This segment of track has always been worked by adhesion. This line is owned by Great Smoky Mountains Railroad and in 2019 is out of service. 1 in 14.2 (7.0%) Bernina Railway, Switzerland: MAX Light Rail system, Portland, Oregon, United States System's ruling gradient of 7.0% is located on the viaduct connecting the Steel Bridge with Southwest ...

4. Elevated railway - Wikipedia

   en.wikipedia.org/wiki/Elevated_railway

   Liverpool Overhead Railway, 1911. The earliest elevated railway was the London and Greenwich Railway on a brick viaduct of 878 arches, built between 1836 and 1838. The first 2.5 miles (4.0 km) of the London and Blackwall Railway (1840) was also built on a viaduct.

5. Ballastless track - Wikipedia

   en.wikipedia.org/wiki/Ballastless_track

   Slab track with flexible noise-reducing rail fixings, built by German company Max Bögl, on the Nürnberg–Ingolstadt high-speed line. A ballastless track or slab track is a type of railway track infrastructure in which the traditional elastic combination of sleepers and ballast is replaced by a rigid construction of concrete or asphalt.

6. Jungfrau Railway - Wikipedia

   en.wikipedia.org/wiki/Jungfrau_Railway

   Altitude (top station) 3,454 m (11,332 ft) above sea level Elevation gain 1,393 m (4,570 ft) Operational length 9.3 km (5.8 mi) Gauge 1,000 mm (3 ft 3 + 3 ⁄ 8 in) Rack rail type Strub: Operational speed 12.5 kilometres per hour (7.8 mph) (25 kilometres per hour [16 mph] on shallower gradients, such as above Eismeer) Steepest gradient 25%

7. Cant (road and rail) - Wikipedia

   en.wikipedia.org/wiki/Cant_(road_and_rail)

   [citation needed] For high-speed railways in Europe, maximum cant is 180 mm (7 in) when slow freight trains are not allowed. [1] Track unbalanced superelevation (cant deficiency) in the United States is restricted to 75 mm (3 in), though 102 mm (4.0 in) is permissible by waiver. The maximum value for European railways varies by country, some of ...