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O scale
Australian O scale model railway
Scale
British: 7 mm to 1 ft (7 mm to 304.8 mm, 1:43.5); Continental Europe: 1:43.5 and 1:45; American: 1⁄4 in to 1 ft (6.35 mm to 304.8 mm, 1:48)
Model gauge
32 mm (1.26 in)
Prototype gauge
1,435 mm (4 ft 8+1⁄2 in) standard gauge
O scale (or O gauge) is a scale commonly used for toy trains and rail transport modelling. Introduced by German toy manufacturer Märklin around 1900, by the 1930s three-rail alternating current O gauge was the most common model railroad scale in the United States and remained so until the early 1960s. In Europe, its popularity declined before World War II due to the introduction of smaller scales.
O gauge had its heyday when model railroads were considered toys, with more emphasis placed on cost, durability, and the ability to be easily handled and operated by pre-adult hands. Detail and realism were secondary concerns, at best. It still remains a popular choice for those hobbyists who enjoy running trains more than they enjoy other aspects of modeling, but developments in recent years have addressed the concerns of scale model railroaders making O scale popular among fine-scale modellers who value the detail that can be achieved.
The size of O is larger than OO/HO layouts, and thus is a factor in making the decision to build an O gauge layout.
Collecting vintage O gauge trains is also popular and there is a market for both reproduction and vintage models.
Oscale (or O gauge) is a scale commonly used for toy trains and rail transport modelling. Introduced by German toy manufacturer Märklin around 1900,...
gauge tracks and trains in HO. The name HO comes from 1:87 scale being half that of Oscale, which was originally the smallest of the series of older and...
scale sizes are internationally standardized, with the notable exceptions of Oscale and N scale. There are three different versions of the "O" scale...
TT scale (from "table top") is a model railroading scale at 1:120 scale with a Track gauge of 12 mm between the rails. It is placed between HO scale (1:87)...
This is a list of scale model sizes, listing a variety of size ratios for scale models. Super Series - 1:1400 Scale, Modern Brands website (accessed 2017-06-21)...
1:43 scale, 1:48 scale and 1:50 scale die-cast models with Oscale model trains. using Matchbox cars (1:64 to 1:100) with HO scale and S scale. mixing...
O Train may refer to: The O-Train, a light-rail transit (LRT) service in Ottawa, Ontario, Canada The Oscale for model railroads Oscar Robertson O line...
protocol is considered scalable with respect to network size, if the size of the necessary routing table on each node grows as O(log N), where N is the...
Atlas Model Railroad Company, Inc. makes scale models in N scale, HO scale, and Oscale. The company is based in Hillside, New Jersey, United States. They...
Gilbert began manufacturing S scale trains around 1939 that ran on three rail "O" gauge track. This was known as 3⁄16-inch O gauge. Gilbert stopped producing...
The Kardashev scale (Russian: Шкала́ Кардашёва, romanized: Shkalá Kardashova) is a method of measuring a civilization's level of technological advancement...
foot in scale either in millimetres or in inches. For instance, 3.5 mm scale is the same as HO. For HO and O -scales, NMRA uses the letter "O" whereas...
the following table the various grading systems are compared (the IDC-Oscale is not comprised because it is not considered a real grading system): WHO...
Z scale is one of the smallest commercially available model railway scales (1:220), with a track gauge of 6.5 mm / 0.256 in. Introduced by Märklin in 1972...
OO gauge or OO scale (also, 00 gauge and 00 scale) is the most popular standard gauge model railway standard in the United Kingdom, outside of which it...
popular scales are: G scale, Gauge 1, Oscale, S scale, HO scale (in Britain, the similar OO), TT scale, and N scale (1:160 in the United States, but 1:148...
The long and short scales are two of several naming systems for integer powers of ten which use some of the same terms for different magnitudes. Some languages...
The Beaufort scale /ˈboʊfərt/ is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort...
mostly in Oscale and S scale, to describe a "compromise" form of modelling that strives for realism while accepting the compromises in scale associated...
The Modified Mercalli intensity scale (MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic...
The Richter scale (/ˈrɪktər/), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, is a measure of the...
model trains in Oscale but due to competition, particularly by Märklin H0 scale, began the transition to H0 in 1954 with their final Oscale set being manufactured...
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