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Noquay - Model Railway Inglenook Layout 4mm (OO)

Glossary of Railway & Model Railway Terms

M

  • Main Line, Main Iron, Main Stem, Main Track - Through trackage; restricted by rules to travel only by scheduled trains or those trains with train orders or on a schedule.
  • MOW (Maintenance-Of-Way) Equipment - Used by a railway to keep track and roadbed in good condition.
  • Mallet - An articulated steam locomotive named after the designer; sometimes used to describe any articulated locomotive.
  • Marker Flags Or Lights - Used on trains to indicate special status or to warn of a following section.
  • Marklin - Marklin is a German manufacturer of high quality precision model trains. Marklin is the worlds largest manufacturer of model trains, and produces Z scale, N scale.
  • HO - scale and gauge equivalent to 3.5mm to the foot.
  • Marshalling Yard - Area where cars are sorted, assembled and marshalled into trains.
  • MBSO - Motorised brake second class open carriage car.
  • Meet - When two trains traveling in opposite directions pass each other. Usually used to describe a single mainline operation where none train waits on a siding for the other to pass.
  • Micro-Trains - Manufacturer of precision model railways equipment in both Z scale and N scale.
  • Mike - Abbreviated term for a Mikado type locomotive.
  • Milk Car - Refrigerator car for milk.
  • Milk Train - A slow train.
  • Mixed Train - A train pulling both passengers and freight cars.
  • Module - A section of a layout that is built following a standard pattern or dimensions. Each module can be connected interchangeably with any other module built to the same standards. NMRA has developed standards for HO and N-trak is an organization that has developed standards to N scale modules.
  • Monorail - A railway in which the train runs on a single rail.
  • Mother Hubbard - A locomotive with the cab straddling the boiler like a saddle. (See Camelback)
  • Motion - A moving mechanism on a steam locomotive.
  • Motor Bridge - Bogie having driving wheels or motored axles.
  • Motorman - Driver of an electric train, railcar or multiple unit train.
  • Mountain Railway - Specialized form of railway for ascending mountains.
  • MOW (Maintenance-of-way Equipment - Used by a railway to keep track and roadbed in good condition.
  • MRIA (Model Railway Industry Association) - An association of model railway manufacturers.
  • MAS (Multiple Aspect Signaling) - A system of color light signaling, that could be provided either by multi-lens, or searchlight signals in which each signal unit can display more than two aspects.
  • Multiple Track - A section of railway track having more than just one up line and one down line.
  • MU (Multiple Unit) - Cars or locomotives which contain their own power but which can be controlled from the foremost car or locomotive; used on commuter trains and diesel locomotives.
  • Muzzle Loader - Any hand-fired steam locomotive.