Gravity Yard
A yard where gravity assists in the spotting and classifying of cars whereby they move along under their own momentum. Also called a Hump Yard.
Grazing Ticket ...
When load is not longitudinally centered on car, the axles of the truck closest to longitudinal center of gravity of load will carrying a greater total load than the axles of the truck farthest from the center of gravity of the load and their ...
Cars are cut off in motion at the top of the hump and gravity pulls the cars to the classification tracks.
I
Independent Break The brake control on a locomotive used to control the locomotives air brakes.
Catenary Originally the term used to denote an overhead power line support wire derived from the curve a suspended wire naturally assumes under the force of gravity. Now adopted to mean the whole overhead line system. See overhead.
Gravity - Shunting American gravity or hump yard car sorting or train marshalling undertaken without the aid of a shunting locomotive or switcher.
The laws of motion and illumination of gravity, by Sir Isaac Newton in the late 17th century
The unification of electromagnetism, by James Clerk Maxwell
The discovery of hydrogen, by Henry Cavendish ...
Many loaders are built on a grade so gravity can do a lot of work for them. Invariably, empty hoppers are placed upgrade of the loading point.
Hills: climbing a gently-sloping hill - 10 degrees to 44 degrees- slows troops and wheeled vehicles speed by 1/3 in Earth Gravity only. {Gentle slopes do not affect troops in Lunar Gravity.) It does not slow tracked vehicles.
If you remember you basic laws of physics and Newton's theory of gravity, you can quickly calculate that what goes up must come down. And when you carry a lot of weight, you tend to drop faster than you went up.
To apply this with a brush, just dip the brush into the mix, then carefully dab the brush under the roof line of the car and let gravity pull the solution down the sides.
Centrifugal force or gravity provide bias toward one rail. If rail "B" is perhaps a millimeter higher than rail "A", all wheels on the lower rail will kiss rail "A" with their flanges. The train will exit the TURNIP via path "X".
However, due to the magic of electromagnetics, if the wheels are turned by an external force (such as gravity pulling a train down a hill) the motors will run as dynamos, generating electricity.
An elevated section of track from which free-wheeling freight cars can be coasted by gravity for classification in the yards below.
Hy-cube
A type of boxcar that is taller than a standard boxcar, and therefore has a higher cubic capacity.
You shouldn't feel restricted by rules of real life (except maybe by things like gravity). Some people would have said, "But that didn't really happen". Well, neither did The Polar Express, but it still makes a good story.
Freight car with its floor sloping to one or more doors designed for unloading the contents (such as coal or ore) by gravity
Horsepower (HP)
Measure of power. One HP = The force that will raise 33,000 pounds by 1 foot in 1 minute.
To improve grip on slippery rails, sand is applied to the rail top just ahead of the leading driving wheel. Sanders are operated by the driver as required and are usually gravity fed on steam locomotives.
An insulated metallic sliding contact, mounted on the truck of an electric locomotive for collecting current from an insulated third rail located alongside the running rails. Positive contact between shoe and rail is maintained by gravity, ...
EMF is short for electro-motive force. Back emf measurements are used for speed stabilisation on areas of the track such as hills, or long curves where additional motive power is needed to compensate for gravity or friction.
RAILWAYS. A freight yard where wagons are sorted by pushing them over a hill (hump) and letting them roll down under gravity, not coupled to a locomotive, to the desired tracks via a number of junctions.
Hump: A raised section in a rail sorting yard that allows operators to use gravity to move freight railcars into the proper position within the yard when making up trains of cars (that is, humping the cars).
House Track A track entering, or along side a freight house. Cars are spotted here for loading or unloading. Hump A rail yard with a hill. Cars are cut off in motion at the top of the hump and gravity pulls the cars to the classification ...
 See also: Track, Engine, Train, Operation, Locomotive
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