National Model Railroad Association
The National Model Railroad Association, Inc. (NMRA) is the national association of model railroaders in the United States . It regulates and standardizes model railways in the USA.
Headquartered has the NMRA in Chattanooga (Tennessee) .
history
According to its own information, the NMRA was founded on September 1, 1935 in Milwaukee and registered as a non-profit organization in Ohio on May 17, 1947 in order to standardize the (typically incompatible) systems of the manufacturers so that products from different manufacturers can be used together could. The NMRA dates the publication of the first standards to the year 1936.
Goal setting
Include your goals
- the standardization of model railways,
- promoting consultation and cooperation among those involved,
- the promotion of personal skills,
- advanced training of model railroaders,
- as well as the further development of the hobby.
Normalization
When it comes to standardization, the NMRA usually begins by recording existing standards and recording them in the form of a Recommended Practice (RP for short). Mandatory standardized ( standardized ) properties of models are called standard and are abbreviated with "S" and a consecutive number.
Examples of standards
Probably the best known Recommended Practice in Europe is the RP25 , which defines the various forms of wheelset and wheel flange . The DCC protocol is specified in the USA as a recommendation for digital multi-train control (RP9).
See also
European model railroad standards
Web links
Individual evidence
- ↑ a b NMRA - National Organization ( Memento of the original from July 6, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. on nmra.org
- ↑ Standards & Recommended Practices ( Memento of the original from April 3, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. on nmra.org
