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Traction

Model railroad Trackage RightsTractive Force

This layout is like a wild mouse ride for those who want to model a city with a busy traction system. You can leave it at 4' by 8' and have a great time, or extend two feet for more action.

 


Traction Motor Blower
Fan system used to provide cooling air to the traction motors on electric or diesel electric locomotives and multiple units.
Tractive Effort ...

Traction: City and suburban trolley lines; equipment run by electricity.
Train set: a train sold as such by its manufacturer, with or without track and transformer.

Traction - The generic term for electrically powered locomotives and self-propelled railcars like Interurbans and trolleys, which drew their electricity from third rail or overhead power lines.

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Traction
Public utility transportation; by extension, all electrically operated trains.
Trailing point ...

Traction motor
Electric motor which turns a locomotive's wheels, providing traction with the rail and making the vehicle move. There is usually one traction motor geared to each axle.
Tractive effort ...

Traction Electrically run trains in cities.
Truck Wheel assembly a train car rides on.
Turnout Allows movement from one track to another. Modeler's term for switch, so as not to confuse it with an electrical switch.

Traction
1.)Eelectrically powered railroads, especially city and interurban trolley lines. 2.) A locomotive's grip on the rails.
Traction Motor ...

Traction
In the context of rail transportation and associated modeling, a term generally used to connote electric trolley, streetcar, and interurban lines and equipment.
Tractive Effort ...

A traction engine (sometimes called a road locomotive) is a wheeled steam engine used to move heavy loads, plough ground or to provide power at a chosen location.
..... Click the link for more information.

EAST PENN TRACTION CLUB
Modular Trolley Modelers Group
Includes Photo Gallery, Layouts, and Links
MODELTRAMS ...

When traction tire equipped locos slip on grades, run your finger across the rubber tire. If this soils your finger the tire should be replaced. Grime sticks to the tires and reduces traction. Replace, don't clean them.

Any employee of a railroad, or of a contractor to a railroad, whose duties include and who is engaged in the inspection, construction, maintenance or repair of railroad track, bridges, roadway, signal and communications systems, electric traction ...

Adjustment switches are also used when thermal forces, additional to those in CWR, may be encountered such as at long underbridges which are themselves subject to expansion and contraction (US term: Breather Switch).

Dynamic Braking A method of train braking where the kinetic energy from the train movement generates current at the locomotive traction motors, and is dissipated in a resistor grid on the locomotive. Dynamite Initiation of an emergency application.

Slug A small, ballasted, four or six axle unit, semipermanently coupled to a locomotive that does not have a prime mover, but does have traction motors.

Semi-Conductor - Material used in electric traction rectifiers, whose electrical resistance depends on the direction of the applied voltage. Silicon and Germanium are typical examples.
Seniority - Length of service relative to others.

The last of British Rail's diesel classes to be built for express passenger work, after which electric traction and HST sets took over from the diesel locomotives.
Class 52
RAILWAYS. A type of locomotive used in Britain. Built in 1961-64.

Traction motor: A large electric motor which drives the wheels on a Diesel Electric Locomotive. The number of traction motors depends on the locomotives configuration and horsepower. Most have direct drive axles and some have gear driven axles.

High adhesion locomotive axles were counted as 1 1/3 conventional traction motors, hence, a C40-8 or an SD-60 with 6 actual axles would be counted as 8 axles.

Dynamic Braking is basically the reversing of polarity between the traction motors and main generator. Under throttle or motoring, the main generator converts mechanical force of the prime mover (diesel engine) into electrical energy.

The engine directly powered a General Electric GT-534 main generator, which provided current to two, GE model 716 traction motors mounted on the first truck.

Traction Motive Depot (TMD) A modern version of the MPD which stores and services electric and diesel locomotives. Trailing crossover A crossover that requires trains to reverse in order to transfer to the other line.

An electrical apparatus at code change points in electric traction areas to separate signal and traction current.
Interchange track. A track used for the transfer of cars from one railroad to another.
Interlocking.

The electrical machine (traction motor) geared to the axles of all diesel-electric and electric locomotives, and used to convert the electrical energy provided by the diesel engine and main alternator in a diesel electric locomotive, ...

Think up suitable attraction names that describe the animals living in there. Create miniature signs and attach these to toothpicks. Stick these on the board with poster tack or similar temporary adhesive that can be moved around as wished.
8 ...

Rail joiners allow for expansion and contraction as room temperature changes. This is important. Here in California, we build layouts in garages where 35 degrees in winter and 100 degrees in summer is common.

The lever which controls the direction of motion of the locomotive by reversing the traction motor field connections.
Reverse Movement
A movement opposite the authorized direction.

SRNRR layout and looking for ideas when I came upon a book "Fifties Flashback : A Nostalgic Trip!" by Albert Drake. The front cover shows a drawing of a drive in with a girl on skates and I knew what was now going to be the center of attraction ...

You can buy these inclines in different grades of elevation from 1-4%. You don't want your grade, or slope, to be any greater than 4% because some locomotives won't have the power or the traction to carry many cars, if any, much steeper than that.

See also: Track, Engine, Locomotive, Train, Operation