Normen Europäischer Modelleisenbahnen
Encyclopedia
NEM standards are the standards for model railroads issued by the MOROP
. NEM stands for Normen Europäischer Modellbahnen (German), Normas Europeas de Modelismo (Spanish) or Normes Européennes de Modélisme (French), the German translating to European Standards for Model Railways). The phrase Normal European Modelling Standards or simply NEM Standards is used among European rail modellers in the UK.
The NEM standards are defined and maintained by the Technical Commission of the MOROP in collaboration with model railroad manufacturers.
The NEM standards define the model railroad scales and guide manufacturers in creating compatible products and assist modellers in constructing model railroad layouts
that operate reliably. The standards cover areas like suggested grades, turnout
radii, wheel profiles, coupling designs and Digital Command Control
and are mostly scale specific. A fundamental principle in NEM standards are compromises in the exact scale reduction ratio in order to favor operational reliability of model railroad systems. An example for this are wheel flanges
which tend to be proportionally wider in smaller scales to ensure a reliable operation.
The NEM standards cover areas similar to the standards and recommended practices defined by the NMRA in the United States
, but the two standards are not universally interchangeable. In recent years, MOROP and NMRA have been working more closely together to establish common standards for developments such as Digital Command Control
. European model railroad manufacturers generally follow the NEM standards, while North American manufacturers generally follow NMRA standards.
:Category:Model railroad manufacturers
(Most of this page's content was taken from the NEM article in DCCWiki)
MOROP
MOROP is a European association that federates national associations of railroad and model railroad enthusiasts. MOROP was founded in Genoa in 1954 and now has its headquarters in Bern . In 2006, MOROP federated 22 national associations from 17 European countries, with a total of more than 30,000...
. NEM stands for Normen Europäischer Modellbahnen (German), Normas Europeas de Modelismo (Spanish) or Normes Européennes de Modélisme (French), the German translating to European Standards for Model Railways). The phrase Normal European Modelling Standards or simply NEM Standards is used among European rail modellers in the UK.
The NEM standards are defined and maintained by the Technical Commission of the MOROP in collaboration with model railroad manufacturers.
The NEM standards define the model railroad scales and guide manufacturers in creating compatible products and assist modellers in constructing model railroad layouts
Model railroad layout
In model railroading, a layout is a diorama containing scale track for operating trains. The size of a layout varies, from small shelf-top designs to ones that fill entire rooms, basements, or whole buildings....
that operate reliably. The standards cover areas like suggested grades, turnout
Railroad switch
A railroad switch, turnout or [set of] points is a mechanical installation enabling railway trains to be guided from one track to another at a railway junction....
radii, wheel profiles, coupling designs and 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....
and are mostly scale specific. A fundamental principle in NEM standards are compromises in the exact scale reduction ratio in order to favor operational reliability of model railroad systems. An example for this are wheel flanges
Flange
A flange is an external or internal ridge, or rim , for strength, as the flange of an iron beam such as an I-beam or a T-beam; or for attachment to another object, as the flange on the end of a pipe, steam cylinder, etc., or on the lens mount of a camera; or for a flange of a rail car or tram wheel...
which tend to be proportionally wider in smaller scales to ensure a reliable operation.
The NEM standards cover areas similar to the standards and recommended practices defined by the NMRA in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
, but the two standards are not universally interchangeable. In recent years, MOROP and NMRA have been working more closely together to establish common standards for developments such as 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....
. European model railroad manufacturers generally follow the NEM standards, while North American manufacturers generally follow NMRA standards.
See also
- MOROPMOROPMOROP is a European association that federates national associations of railroad and model railroad enthusiasts. MOROP was founded in Genoa in 1954 and now has its headquarters in Bern . In 2006, MOROP federated 22 national associations from 17 European countries, with a total of more than 30,000...
- MOROP, the association defining and maintaining the NEM standards - NMRA - National Model Railroad Association
- Digital Command ControlDigital Command ControlDigital 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....
(DCC) - a standard for digital control of model railroads
:Category:Model railroad manufacturers
- Rail transport modelling scalesRail transport modelling scalesRail transport modelling utilises a variety of scales to ensure scale models look correct when placed next to each other. Model railway scales are standardized worldwide by many organizations and hobbyist groups...
- Model Railway Scales
External links
(Most of this page's content was taken from the NEM article in DCCWiki)