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On2 gauge is part of the hobby of rail transport modeling. The name is based on the common USA model railroad O scale ('oh' scale) of 1:48 and refers to the gauge between the rails ( ) and the fact that it is narrow gauge, thus 'On2'. == History == Prototype 2-foot gauge railroads existed, and still exist, all over the world. The prototype railroads being modeled in On2 scale include: *The Maine 2-foot railroads. A series of gauge railroads that existed in the state of Maine, USA from the 1870s to the 1940s. *2-foot gauge railways of Wales and England, including the Ffestiniog Railway. *2-foot gauge railways of South Africa. *2-foot gauge Gilpin Tramway of Colorado, a gauge mining railroad that used Shay locomotives. *2-foot gauge industrial railroads found all over the world including extensive systems still serving the sugar cane industry in the 21st century in Queensland, Australia. (need early history of On2 scale modeling) A pioneer modeler in On2 was Allan Hanson. He was one of the first (if not ''the'' first) modelers to have a fully functioning On2 layout. He was a prolific builder, and though his models were not built to the level of detail seen today, they were more than acceptable for the time. He was also the first modeler to produce a diorama in the early 1960s built to exact HOn2 scale. This diorama later went on to win an award at the annual NMRA show. For most of its history, On2 scale modeling involved mostly scratch-building of locomotive and rolling stock, and hand-laying track. On2 scale locomotives were obtained by either scratch-building, adapting chassis from other scales, or buying ready to run On2 locomotives, which were available in brass only. In 2007, Bachmann gave a major "shot in the arm" to Maine On2 scale modeling when they introduced their On30 scale (Forney locomotive ), which is based on a Baldwin catalog design very close to actual locomotives used by Maine 2-foot gauge prototype railroads. These forney locomotives, although available in On30 scale only, have created an increase in Maine 2-footer modeling, and an increase in On2 scale modeling. On30 locomotives and rolling stock must be regauged to operate in On2 scale. This is often a difficult proposition. Many modelers choose to simply keep them in On30 scale for ease of use, modeling gauge railroads in On30 scale, but this results in the wrong gauge for correct 2-footer modeling. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「On2 gauge」の詳細全文を読む スポンサード リンク
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