Scale model
From Free net encyclopedia
A scale model is a representation or copy of an object that is larger or smaller than the actual size of the object being represented. Very often the scale model is smaller than the original and used as a guide to making the object in full size.
Scale models are useful:
- in engineering for testing the likely performance of a design object at an early stage without the expense of building a full-sized prototype.
- in architecture for showing the look of a new construction before it is built
- in entertainment for constructing objects or sets that cannot be built in full size
Scale models are also built or collected as a hobby: aircraft; cars; vehicles; figures; matchstick models; military vehicles; railways; rockets; and ships. These models — especially aircraft, cars, and ships — may be radio controlled. Image:Federal Plaza,Washington,DC.jpg
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History of the scales
Before the plastic model kit industry
Hobbyists' scale models derive from those used by the firms which made the full-sized products. Originally, a "scale" was a physical measuring instrument, a notion which survives as concerns weight. First among scales are the rulers that are triangular in cross-section and called architect's scales or engineer's scales. The terminology used was of this manner: "scale size to full size", or the reverse. An architect's scale was used to make the first affordable models: doll houses and their furniture. Its popular scales for these miniatures were "one inch to the foot" and "one-half inch to the foot"; there is also "three-quarters inch to the foot".
The proportion of the model to the prototype was originally called "size", as in "full-sized" or "half-sized", as used on a blueprint for making something that would fit on a workbench.
Shipyards were the first to use the scales to make models of things larger than a house. The scales they used were expressed in a different manner: "one-foot-to-the-inch" through "six-feet-to-the-inch" were common. During the Second World War, battleship models were made "eight-foot-to-the-inch", in the later phrasing, "one-eighth-inch to the foot"; you will find these models used for training workers in maritime museums. The model ship would be referred to as "one-ninety-sixth size", or "1/96th", but rarely, as there were few scales commonly used; it couldn't possibly be "1/98th scale", for example.
There were also rotary instruments in which one would line up marks on two dials to be able to translate measurements from units on the prototype to units on the model. After the production of kits to make plastic models became an industry, there were developed rulers marked in the model units and which are called scales.
Comparing scales
Phrases used are those of "larger" and "smaller" scales. The scale of 1/8"-to-the-foot is a larger scale than 1/16"-to-the-foot, even though the denominator is smaller. So a larger model is made to a larger scale. You can remember this in that a full-size, or full-scale, model is larger than a half-size model.
Origins of the plastic model kit
For aircraft recognition in the Second World War, the RAF selected making models to the scale of "one-sixth inch to the foot" (which was two British lines, a legal division of length which didn't make it to America, besides being a standard shipyard scale). Although some consumer models were sold pre-war in Britain to this scale, the airmens' models were pressed out of ground-up old rubber tires. This is of course the still-popular "one-seventy-second size".
It wasn't predestined to succeed; there were competitors. The US Navy, in contrast, had metal models made to the proportion 1:432, which is "nine-feet-to-the-quarter-inch". At this scale, a model six feet away looked as the prototype would at about half a statute mile; and at seven feet, at about half a nautical mile.
After the war, firms that moulded models from polystyrene entered the consumer marketplace, the American firm Revell notably offering a model of the Royal Coach around the time of the 1953 coronation. In the early years, firms offered models of aircraft and ships in "fit-the-box" size. A box that would make an impressive gift was specified, and a mould was crafted to make a model that wouldn't ludicrously slide around inside. Modellers could not compare models, nor switch parts from one kit to another. It was the British firm Airfix that brought the idea of the constant scale to the marketplace, and they picked the RAF's scale.
In the 1960s, the company Monogram offered an aircraft actually labeled as ¼" scale, which may have been a common contraction in factories. They meant "one-quarter-inch to the foot", or "one-forty-eighth size". Shortly thereafter, hobbyists lost the ability to distinguish the two, and now the proportion is referred to as scale.
Terminology
The terms and the means of writing them down have changed, and for model kits they are now standardized for the European Union. In English-speaking countries, such terms as "1/72" were used, but the format with a colon as "1:72" is often preferred. The slash format is usually avoided with decimal fractions: "1/76.2" is usually not used; it's "1:76.2" instead. That hybrid OO gauge can also be expressed by explicitly using a mixed system of units as "4 mm:1 ft" or "1 mm:3 in", but the dimensionless form makes comparison with other scales easier.
Rational choice of scales
The nominal height of a man is simple in the inch-based system: six feet. Many traditional scales are derived so that a figure of such a height against the model can be readily imagined as a simple relation to an inch. Although the metric system has specified a limited series of scales for blueprints and maps, when it comes to models, there may be a problem with these scales for a readily imagined person of 180 centimetres. Model railways have the additional difficulty of having to present the rail gauge as a simple number, the height of a person being secondary. Trade authorities in metric countries are attempting to specify scales that are simple mulitiples of 2 and 5, but neither tracks nor people seem to fit. Or it could be that they are using the statement of rationalization for competitive advantage, so that people will buy models of their scale and not those of another manufacturing country?
On the other hand, wargaming scales have traditionally been traced to metric system, where the number of millimetres relate to the relative height of the human figure based on 180 cm standard man. Therefore 25 mm scale (popular in historical and fantasy wargaming) refers to 1:72 scale, whilst the 15 mm scale (nowadays the most popular scale in ancient, medieval and Renaissance wargaming) refers to 1:120 scale. Likewise, 50 mm scale is the same as 1:35 military model scale, and 5 mm equals 1:350 naval scale.
Typical scales of models
Model aircraft
The premier scale for model aircraft vehicles is 1:72. Airliners and other large aircraft are at 1:144, with a few at 1:288. A scale with more room for detail is 1:48, which is a preferred scale for single-engine World War Two aircraft. Other, arguably more luxurious, models are available at 1:32 and 1:24. A few First World War aircraft were offered at 1:28 by Aurora. Other scales which failed to catch on are 1:64, 1:96, and 1:128. Repressings of old moulds are often revived in these scales, however. There are also the most common carrier aircraft at the scales of their ships (see below). Many older plastic models, such as those built by Revell do not conform to any established scale, are sized to fit inside standard sized boxes. These kits, often called "box-scale," are often reissued still in their original(and unusual) scales, such as their 1:39 Wright Flyer.
Although the Soviets did not supplant 1:48 with their scale 1:50, nor 1:32 with their scale 1:30, the Japanese tried to offer the scale 1:100. Many Japanese and Korean kits can still be found in 1:100 scale. There is a major European project to bring about 1:150 to replace 1:144, just as they have small toy airliners in decimalized scales. And the French firm Heller SA, unlike any other in the world, offers models in the scale 1:125.
Model rockets and spacecraft
Model rocket kits began as a development of model aircraft kits, yet the scale of 1:72[V.close to 4mm.::1foot] never caught on. Scales 1:48 and 1:96 are used. There are some rockets of scales 1:128, 1:144, and 1:200, but Russian firms put their large rockets in 1:288. Heller is maintaining its idiosyncratic standard by offering some models in the scale of 1:125. Fantasy spacecraft, of course, can be of any scale, as they aren't going to be compared to anything on this planet.
Model railways
Main article: Rail transport modelling
Model railways use the term "gauge" to refer to the distance between the tracks just as full-size railways do. Although railways were built to different gauges, 'standard gauge' means 4ft 8.5inch between the inside surfaces of the rails.
The gauges for model railways were originally measured in inches, but later they were standardized ton metric units, even for companies which put models in traditional Architect's gauge proportions on such metric tracks. A range of accepted gauges were accepted by model railroaders for each gauge for convenience's sake.
The most popular scale to go with a given gauge was often derived at by the following roundabout process. German artisans would take strips of metal of standard metric size to make things to blueprints whose dimensions were in inches: hence "4 mm to the foot" yields the 1:76.2 size of the "00 gauge". This British scale is anomalously used on the standard H0 gauge (16.5 mm gauge from 3.5mm/foot scale) tracks, however, because early electric motors weren't available commmercially in smaller sizes.
The Germans have a more developed terminology, which can explain this a bit better. Baugrösse (English: "building size") is the alphanumeric designation, which has nothing to do with physical measuring. It's used for gauge, as in "No. 1 gauge", "HO gauge", or "Z gauge". Maßstab (English: "measure") is the proportion, with a colon, as in the corresponding terms "1:32", "1:87.1", and "1:220". Spurweite (English: "track width") is the distance between the rails, or correspondingly "1¾-inch", "16.5 mm", and "6.5 mm", and again gauge is used for this in English. One might add to these the old use of the term scale, of "3/8 inch to the foot" and "3.5 mm to the foot" for the first two, while the last really isn't expressible in this manner. Early 1900s German mass-produced toys had a measured gauge from rail centre to rail centre of rolled tinplate rail, with much latitude between flange & rail.
There are three different standards for the "0" Gauge, each of which uses tracks of 32 mm for the standard gauge. The American version continues a dollhouse scale of 1:48. It is sometimes called "quarter-gauge", as in "one-quarter-inch to the foot". The British version continued the pattern of sub-contracting to Germans; so, at 7 mm to the foot, it works out to a scale of 1:43.5. Later, MOROP, the European authority of model railroad firms, declared that the "0" gauge (still 32 mm) must use the scale of 1:45. That is, in Europe the below-chassis dimensions have to be slightly towards 4ft. 6 inches, to allow wheel/tyre/splasher clearance for smaller than realistic curved sections.
"Live steam" railways, that you actually ride on, are built in many scales, such as 1-1/2", 1", and 3/4" to the foot. Common gauges are 7-1/2" (Western US) and 7-1/4" (Eastern US & rest of the world), 5", 4-3/4". Smaller Live Steam gauges do exist, and although they may be capable of exerting sufficient pulling force to move a small child, the materials used in their construction would not allow them to support that small child.
Model cars
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Although the British scale for "O" gauge was first used for model cars comprised of rectilinear and circular parts, it was the origin of the European scale for cast or injection moulded model cars. MOROP's specification will not alter the series of cars in 1:43 scale, as it has the widest distribution in the world.
In America, a series of cars was developed from at first cast metal and later styrene models ("promos") offered at new-car dealerships to drum up interest. The firm Monogram, and later Tamiya, first produced them in a scale derived from the Architect's scale: 1:24, while the firms AMT, Jo-Han, and Revell chose the scale of 1:25. Monogram later switched to this scale after the firm was purchased by Revell. Some cars are also made in 1:32 scale, and rolling toys are often made on the scale 1:64.
Model robots
Japanese firms have marketed toys and models of what are often called mecha, nimble humanoid fighting robots. Model robots are marketed in scales 1:100 and 1:144, like model aircraft, which seems strange to some westerners as they believe that they are best displayed in scenes crashing against houses, and thus should use natural model railway gauges instead. Still, as there are 1:144 model railways, in Japan itself this do not matter much; and numerous after market accessories for mecha models (as well as scratch building, which is what makes this hobby fun) render this "strange" scaling matter little.
Currently, Bandai is the main producer of mecha models, commonly called Gunpla, as most of them are models for Gundam. In general, they are release in the following scales:
- 1:60 Perfect Grade, with very detail frames and other details, such as fully articulated fingers. Priced at around 28000 yen.
- 1:100 Master Grade, with quite detailed frames and outbody, though not as elaborate as perfect grade; usually lack a detail head and articulated fingers. Priced at around 3500 yen
- High Grade are generally shown with external only, with no frames. (though some have exception, such as HGUC, high grade-universal century). They come in all 3 scales (1:60, 1:100 and 1:144). However, some of the 1:144 are actually models of very large mobile suits, which makes them reaching equivalent height to a 1:100 or even 1:60, with elaborate frames and details. Priced at around 1400 yen for 1:144, 2500 yen for 1:100, and 4000 yen for the 1:60.
- Non-grade/Low-grade models: They are usually very unarticulated, though priced at 500 yen are good as a quick build, or as parts for Gunplas of other grades.
- Super Deformed, non scale: They are no too articulate, due to their deformed size. Just like their 2D origins, their head are quite large compared to the rest of the body.
Usually, they do not require glue or paint (snapped together), though when they are used will greatly enhance the look of the model.
Due to the fact that mechas are not real objects, and is humanoid, aside from aiming at realism, it may also aim for pure creativity, either on creating an entire new look of the model, or strike artistic poses. Thus, scratchbuilding for Gunpla is actually quite common.
Model tanks and wargaming
Just before the twentieth century, the British historian (and science fiction author and forgotten mainstream novelist) H. G. Wells published a book, Little Wars, on how to play at battles in miniature. His books use 54mm lead figures, particularly those manufactured by Britons. His fighting system employed spring-loaded model guns which shot matchsticks.
This use of physical mechanisms was echoed in the later games of Fred Jane, whose rules required throwing darts at ship silhouettes; his collection of data on the world's fleets was later published and became renowned. Dice have largely replaced this toy mayhem for consumers.
For over a century, toy soldiers were made of white metal, a lead-based alloy, often in Architect's scale-based ratios in the English-speaking countries, and called tin soldiers. After the Second World War, such toys were on the market for children but now made of a safe plastic softer than styrene. American children called these "army men". Many sets were made in the new scale of 1:40. A few styrene model kits of land equipment were offered in this and in 1:48 and 1:32 scales. However, these were swept away by the number of kits in the scale of 1:35.
Those who continued to develop miniature wargaming preferred smaller scale models, the soldiers still made of soft plastic. Airfix particularly wanted people to buy 1:76 scale soldiers and tanks to go with "00" gauge train equipment. Roco offered 1:87 scale styrene military vehicles to go with "H0" gauge model houses. However, although there isn't any 1:72 scale model railroad, more toy soldiers are now offered in this scale because it is the same as the popular aircraft scale. The number of fighting vehicles in this scale is also increasing, although the number of auxiliary vehicles available is far fewer than in 1:87 scale.
Armies use smaller scales still. The US Army specifies models of the scale 1:285 for its "sand-table" wargaming. There are metal ground vehicles and helicopters in this scale, which is a near-rationalization of a notion of "one-quarter-inch-to-six-feet". The continental powers of NATO have developed the similar scale of 1:300, even though metric standardizers really don't like any divisors other than factors of 10, 5, and 2, so maps are not commonly offered in Europe in scales with a "3" in the denominator.
Consumer wargaming has since expanded into fantasy realms, employing scales large enough to be painted in imaginative detail - so called "heroic" 28mm figures, (roughly 1:64, or S scale). Firms which produce these do so in so small production lots that they are necessarily made of white metal. And the quite successful British firm Games Workshop even offers plastic fantasy war machines, like Warhammer 40,000.
Model buildings
Other than as an adjunct to model railroading or in forming dioramas with model war machines, this has not caught on as a hobby. So the expected standardized sizes from architectural practise have not developed. Hence Heller can offer a model of the Eiffel tower at the unique scale of 1:650, which couldn't be compared to anything.
Model ships and naval wargaming
In the first half of the twentieth century, navies used hand-made models of warships for identification and instruction in a variety of scales. That of 1:500 was called "teacher scale." Besides models made in 1:1200 and 1:2400 scales, there were also ones made to 1:2000 and 1:5000. Some, made in Britain, were labelled "1 inch to 110 feet," which would be 1:1320 scale, but aren't necessarily accurate.
Just before the Second World War, the American naval historian (and science fiction author) Fletcher Pratt published a book on naval wargaming as could be done by civilians using ship models cut off at the waterline to be moved on the floors of basketball courts and similar locales. The scale he used was non-standard (reported as 1:666), and may have been influenced by toy ships then available, but as the hobby progressed, and other rule sets came into use, it was progressively supplemented by the series 1:600, 1:1200, and 1:2400. In Britain, 1:3000 became popular and these models also have come into use in the USA. These had the advantage of approximating the nautical mile as 120 inches, 60 inches, and 30 inches, respectively. As the knot is based on this mile and a 60-minute hour, this was quite handy.
After the war, firms emerged to produce models from the same white metal used to make toy soldiers. One British firm offered a tremendously wide line of merchant ships and dockyard equipment in the scale 1:1200. In the US, at least one manufacturer, of the wartime 1:1200 recognition models, Comet, made them available for the civilian market postwar, which also drove the change to this scale. In addition, continental European manufacturers and European ship book publishers had adopted the 1:1250 drawing scale because of its similar convenience in size for both models and comparison drawings in books.
A prestige scale for boats, comparable to that of 1:32 for fighter planes, is 1:72, producing huge models, but there are very few kits marketed in this scale. For the smaller ships, plank-on-frame or other wood construction kits are offered in the traditional shipyard scales of 1:96, 1:108, or 1:192 (half of 1:96). In injection-molded plastic kits, Airfix makes full-hull models in the scale which the Royal Navy has used to compare the relative sizes of ships: 1:600. Revell makes some kits to half the scale of the US Army standard: 1:570. Some American and foreign firms have made models in a proportion from the Engineer's scale: "one-sixtieth-of-an-inch-to-the-foot", or 1:720.
But the continental Europeans have an on-going project of getting rid of all conversions and measurements which they consider non-standard. As they saw how four Japanese model-making firms (Tamiya, Hasegawa, Aoshima, and Fujimi) formed a cartel to apportion out the project of putting out waterline kits of the whole fleet of Japanese warships of the Second World War on the market in a proportion that no firm from any other country did - 1:700, the Europeans are attempting to have the scale of 1:400 standardized for full-hull model ships, even though some Japanese firms have produced larger ships in the luxury scale of 1:350. ON the other hand, the rise of the resin kit industry in the 1990s led to the introduction of companies around the world producing kits in the 1:350 and 1:700 scales to match pre-existing injection molded kits, creating in limited production a large variety of kitsof subjects which traditional injection-molding makers have not invested resources to produce, due to the expense of creating a large injection mold. In scales more conducive to wargaming, continental Europeans have long marketed waterline kits in the scales 1:1250 and more recently 1:2500 to supplement the British and American lines. The Chinese are joining them. Such trends toward standardization has not affected the Japanese firm Nichimaco, which still produces fit-in-the-box sizes from old molds, and 1:450 size models.
Scales
- For a more complete list of scale model sizes, see list of scale model sizes
Model railways have unique scale/gauge designations, such as: Z; N; HO; OO; EM; P4; O; S; 1. Model figure scales are usually expressed as the height of a six-foot (1.83 m) figure; for example: 54 mm. Other model scales are generally given as a ratio which expresses what a measurement on the model represents on the actual object.
See also
External links
- Scale Replicas - Scale models of cars by master modeler David Da Costa
- European Union of Model Railroad and Railroad Friends
- Machine Mess - The Singapore Scale Model Community
- ScaleModel.NET - International List of Scale Model Related Web Sites
- Scale models of famous architecture
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