HOm scale
Encyclopedia
H0m scale or H0m gauge is used to represent metre gauge trains in the same scale as HO scale
. It runs on gauge tracks (which is the same as TT scale
). Modern HOm trains run on realistic-looking two-rail track, which is powered by direct current
(varying the voltage
applied to the rails to change the speed
, and polarity
to change direction), or by Digital Command Control
(sending commands
to a decoder
in each locomotive). It is a popular scale in Europe, particularly for trains of Swiss outline
.
Ready to run models are widely available from companies like Bemo and D+R Modellbahn, a number of companies including, Lemaco and Ferro-suisse, also produced more detailed handmade brass model
s.
. Narrow gauge
trains are usually modelled on gauge
track which is known as HOe
and industrial minimum gauge
lines are modelled on gauge
track known as HOi or HOf. HOn3 is used to model gauge railroads in the United States
and uses a track gauge of .
Model Railroads
HO scale
HO or H0 is the most popular scale of model railway in the world.According to the NMRA standard S-1.2 predominantly used in North America, in HO scale, represents 1 real foot ; this ratio works out to about 1:87.1. According to the MOROP standard NEM 010 predominantly used in Europe, the scale is...
. It runs on gauge tracks (which is the same as TT scale
TT scale
thumb|right|250px|TT scale model railroadTT scale is a niche model railroading scale, whose name stands for Table Top.Its 1:120 scale and gauge sizes it almost halfway between HO scale and N scale...
). Modern HOm trains run on realistic-looking two-rail track, which is powered by direct current
Direct current
Direct current is the unidirectional flow of electric charge. Direct current is produced by such sources as batteries, thermocouples, solar cells, and commutator-type electric machines of the dynamo type. Direct current may flow in a conductor such as a wire, but can also flow through...
(varying the voltage
Voltage
Voltage, otherwise known as electrical potential difference or electric tension is the difference in electric potential between two points — or the difference in electric potential energy per unit charge between two points...
applied to the rails to change the speed
Velocity
In physics, velocity is speed in a given direction. Speed describes only how fast an object is moving, whereas velocity gives both the speed and direction of the object's motion. To have a constant velocity, an object must have a constant speed and motion in a constant direction. Constant ...
, and polarity
Electrical polarity
Electrical polarity is present in every electrical circuit. Electrons flow from the negative pole to the positive pole. In a direct current circuit, one pole is always negative, the other pole is always positive and the electrons flow in one direction only...
to change direction), or by Digital Command Control
Digital Command Control
Digital Command Control is a standard for a system to operate model railways digitally. When equipped with Digital Command Control, locomotives on the same electrical section of track can be independently controlled....
(sending commands
Command (computing)
In computing, a command is a directive to a computer program acting as an interpreter of some kind, in order to perform a specific task. Most commonly a command is a directive to some kind of command line interface, such as a shell....
to a decoder
Decoder
A decoder is a device which does the reverse operation of an encoder, undoing the encoding so that the original information can be retrieved. The same method used to encode is usually just reversed in order to decode...
in each locomotive). It is a popular scale in Europe, particularly for trains of Swiss outline
Rail transport in Switzerland
The railways of Switzerland include and narrow gauge .*Network size: 5,063 km*standard gauge: , of which is electrified.*narrow gauge: , of which is electrified...
.
Ready to run models are widely available from companies like Bemo and D+R Modellbahn, a number of companies including, Lemaco and Ferro-suisse, also produced more detailed handmade brass model
Brass model
Brass models are scale models, typically of railroad equipment, bridges and occasionally buildings, which are made of brass or similar alloys. Brass traditionally offered finer detail than traditional die-cast and plastic models, although both made considerable advances in the 1990s...
s.
Related Scales
In the same scale standard gauge trains are modelled on gauge track, known as HOHO scale
HO or H0 is the most popular scale of model railway in the world.According to the NMRA standard S-1.2 predominantly used in North America, in HO scale, represents 1 real foot ; this ratio works out to about 1:87.1. According to the MOROP standard NEM 010 predominantly used in Europe, the scale is...
. Narrow gauge
Narrow gauge
A narrow gauge railway is a railway that has a track gauge narrower than the of standard gauge railways. Most existing narrow gauge railways have gauges of between and .- Overview :...
trains are usually modelled on gauge
N scale
N scale is a popular model railway scale/track gauge. Depending upon the manufacturer , the scale ranges from 1:148 to 1:160. In all cases, the gauge is . The term N gauge refers to the track dimensions, but in the UK in particular N gauge refers to a 1:148 scale with track gauge modelling...
track which is known as HOe
HOe scale
HOe or HOn30 is a popular rail transport modelling scale/gauge combination widely used by modellers of European, American, and Japanese narrow gauge railways....
and industrial minimum gauge
Minimum gauge railway
Minimum gauge railways have a gauge of less than or , most commonly , , or . The notion of minimum gauge railways was originally developed by estate railways and by the French company of Decauville for industrial railways....
lines are modelled on gauge
Z scale
Z scale is one of the smallest commercially available model railway scales with a track gauge of . Z scale trains operate on 0-10 volts direct current and offer the same operating characteristics as all other two-rail, direct-current, analog model railways...
track known as HOi or HOf. HOn3 is used to model gauge railroads in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
and uses a track gauge of .
External links
ManufacturerModel Railroads