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{{Infobox company
⚫
'''O.S. Engines''' is a [[Japan]]ese [[model engine]] manufacturer.
| name = O.S. Engines Mfg. Co., Ltd
| logo = O S Engine (logo).png
| logo_size =
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| native_name =
| native_name_lang = <!-- Use ISO 639-1 code, e.g. "fr" for French. For multiple names in different languages, use {{lang|[code]|[name]}}. -->
| romanized_name =
| former_name =
| type = [[Subsidiary]]
| traded_as =
| ISIN =
| industry =
| genre = <!-- Only used with media and publishing companies -->
| fate =
| predecessor = <!-- or: | predecessors = -->
| successor = <!-- or: | successors = -->
| founded = {{start date|1941|12|10}} in [[Higashisumiyoshi-ku, Osaka]], [[Japan]]
| founder = Shigeo Ogawa
| defunct = <!-- {{end date|YYYY|MM|DD}} -->
| hq_location = [[Higashisumiyoshi-ku, Osaka|Higashisumiyoshi-ku]]
| hq_location_city = [[Osaka]]
| hq_location_country = [[Japan]]
| coordinates =
| num_locations =
| num_locations_year = <!-- Year of num_locations data (when known) -->
| area_served = <!-- or: | areas_served = -->
| key_people = Seiichi Arata
| products =
| brands =
| production =
| production_year = <!-- Year of production data (when known) -->
| services =
| revenue =
| revenue_year = <!-- Year of revenue data (when known) -->
| operating_income =
| income_year = <!-- Year of operating_income data (when known) -->
| net_income = <!-- or: | profit = -->
| net_income_year = <!-- or: | profit_year = --><!-- Year of net_income/profit data (when known) -->
| aum = <!-- Only for financial-service companies -->
| assets = 90,000,000 JPY
| assets_year = 2012
| equity =
| equity_year = <!-- Year of equity data (when known) -->
| owner = <!-- or: | owners = -->
| members =
| members_year = <!-- Year of members data (when known) -->
| num_employees = 60
| num_employees_year = 2012
| parent = [[Futaba Corporation]]
| divisions =
| subsid =
| slogan = <!-- or: | slogans = -->
| module = <!-- Used to embed other templates -->
| website = {{URL|www.os-engines.co.jp}}
| footnotes =
| intl = <!-- Set positively ("true"/"yes"/etc) if company is international, otherwise omit -->
}}
⚫
'''O.S. Engines''' is a Japanese [[model engine]] manufacturer.


The company was founded in 1936 by machinist Shigeo Ogawa ("Ogawa Shigeo" in the Japanese surname-first tradition) for the production of model [[steam engine]]s. The name of the firm could have either originated from the traditional Japanese family-name-first tradition being the source of the "OS" name, or from the firm's actual Japanese name, "Ogawa Seisakusho". At the suggestion of American buyer Paul Houghton, Ogawa tooled up for his first [[gasoline]]-powered engine, the 1.6 cc O.S. Type-1 of which 200 units were produced and exported under the brand name, "Pixie." After [[World War II]], Ogawa Seiki expanded to produce the MAX line of engines, which won acclaim for their performance and durability.
The company was founded in 1936 by machinist Shigeo Ogawa ("Ogawa Shigeo" in the Japanese surname-first tradition) for the production of model [[steam engine]]s. The name of the firm could have either originated from the traditional Japanese family-name-first tradition being the source of the "OS" name, or from the firm's actual Japanese name, "Ogawa Seisakusho". At the suggestion of American buyer Paul Houghton, Ogawa tooled up for his first [[gasoline]]-powered engine, the 1.6 cc O.S. Type-1 of which 200 units were produced and exported under the brand name, "Pixie." After [[World War II]], Ogawa Seisakusho expanded to produce the MAX line of engines, which won acclaim for their performance and durability.
[[Image:OS25FSR.jpg|thumb|300px|O.S. 25 FSR (1977), legendary part of O.S. history, shown with muffler]]
[[Image:OS25FSR.jpg|thumb|300px|O.S. 25 FSR (1977), legendary part of O.S. history, shown with muffler]]


In 1976, OS pioneered the field of modern four-stroke [[model engine|glow plug]] ignition model engines with the "FS-60" 10&nbsp;cm<sup>3</sup> displacement exposed valve gear engine, and has been one of the top producers of four-stroke glow-plug-ignition model engines worldwide ever since.
In 1976, OS pioneered the field of modern four-stroke [[model engine|glow plug]] ignition model engines with the "FS-60" 10&nbsp;[[Cubic centimetre|cm<sup>3</sup>]] displacement exposed valve gear engine, and has been one of the top producers of four-stroke glow-plug-ignition model engines worldwide ever since.


Today, O.S. Engines produces a much larger line of engines that includes the only [[Wankel engine|Wankel]] rotary aircraft engine, which was first introduced in 1970, in cooperation with [[Graupner GmbH|Graupner]] of Germany.
O.S. Engines produces a much larger line of engines that included the only available [[Wankel engine|Wankel]] rotary aircraft engine], which was first introduced in 1970, in cooperation with [[Graupner (company)|Graupner]] of Germany.<ref>{{cite book |last=Chinn |first=Peter |date=1986 |title=Model Four-Stroke Engines |location=Wilton, CT USA |publisher=Air Age Publishing |isbn=0-911295-04-6 |pages=74–81 }}</ref> Since Graupner's demise in 2012, O.S. continued to makes this 4.9&nbsp;cm<sup>3</sup> displacement engine on their own, still under license from [[NSU Motorenwerke|NSU]].


The 1980s brought increasing competition, which increased across the 1990s and into the 21st century. O.S. is now a leading manufacturer of single- and multi-cylinder [[Radio-controlled aircraft|model aircraft]] engines ranging from the small .10 LA [[Two-stroke cycle|two-stroke]] to the FF-320 [[Four-stroke cycle|four-stroke]] "giant-scale" flat four-cylinder and the FR7-420 Sirius7 7-Cylinder Radial Engine "giant-scale" [[radial engine|radial]].
The 1980s brought increasing competition, which increased across the 1990s and into the 21st century. O.S. is now a leading manufacturer of single- and multi-cylinder [[Radio-controlled aircraft|model aircraft]] engines ranging from the small .10 LA [[Two-stroke cycle|two-stroke]] to the FF-320 [[Four-stroke cycle|four-stroke]] "giant-scale" flat four-cylinder and the FR7-420 Sirius7 7-Cylinder Radial Engine "giant-scale" [[radial engine|radial]].


O.S. engines in current production include the .21 TM, the .18 TZ, the .46 AX and many others. O.S. also makes required accessories for their engines including [[glow plug]]s, [[exhaust system|exhaust]]s/[[muffler]]s and [[air filter]]s.
O.S. engines in current production include the .21 TM, the .18 TZ, the .46 AX and many others. O.S. also makes required accessories for their engines including [[Glow plug (model engine)|glow plugs]], [[exhaust system|exhaust]]s/[[muffler]]s and [[air filter]]s.


O.S. has also extended their expertise to model cars, offering many reliable and powerful engines for these vehicles. Typical engines include OS 18 CV-R and OS 30VG. Four-strokes include FS26-C-S (0.26ci displacement, meant to replace 0.12-0.15 two-strokes) and FS40-C-S (0.40ci displacement, meant to replace 0.21-and-up two-strokes), with an updated FS26-C-S II currently out of production.
O.S. has also extended their expertise to model cars, offering many reliable and powerful engines for these vehicles. Typical engines include OS 18 CV-R and OS 30VG. Four-strokes include FS26-C-S (0.26 [[Cubic inch|ci]] displacement, meant to replace 0.12-0.15 two-strokes) and FS40-C-S (0.40 ci displacement, meant to replace 0.21-and-up two-strokes), with an updated FS26-C-S II currently out of production.


It is very easy to decode some facts from the engine name. In the above-mentioned four-stroke models, the C means car. This is to avoid confusing them with the aircraft engines they are based on. Additionally, an X in the name denotes a recoil start.
It is very easy to decode some facts from the engine name. In the above-mentioned four-stroke models, the C means car. This is to avoid confusing them with the aircraft engines they are based on. Additionally, an X in the name denotes a [[recoil start]].


O.S. Engines' main competitor for both two- and four-stroke model engines is [[Yamada Engines]] (YS), also designed and produced in Japan, with the [[Saito Seisakusho]] firm being a stronger rival than the YS firm, in volume production of popular four-stroke model engines.
O.S. Engines' main competitor for both two- and four-stroke model engines is [[Yamada Engines]] (YS), also designed and produced in Japan, with the [[Saito Seisakusho]] firm being a stronger rival than the YS firm, in volume production of popular four-stroke model engines.


O.S. has also produced model steam locomotives.<ref>[http://www.oslivesteam.com/english/corporate/index.html O.S. Live Steam locomotive]</ref>
O.S. has also produced model steam locomotives, but has stopped production on 31st March, 2021.<ref>{{Cite web|url=http://www.oslivesteam.com/english/corporate/index.html|title=OS Live Steam Locomotives|website=www.oslivesteam.com}}</ref>


==See also==
==See also==
Line 28: Line 93:


== External links ==
== External links ==
* [http://www.os-engines.co.jp/english/index.htm O.S. Engines Mfg. Co. Ltd. Japan.] (in English)
*[http://www.os-engines.co.jp/english/index.htm O.S. Engines Mfg. Co. Ltd. Japan.] (in English)
*[http://www.osengines.com O.S Engines Home Page]
*[http://www.osengines.com O.S Engines Home Page]
*[http://www.saitoengines.com Satio Engines]
*[http://www.saitoengines.com Saito Engines]
*[http://www.technopower.com/ Technopower Engines] Radial Engines
*[https://web.archive.org/web/20110905022648/http://www.technopower.com/ Technopower Engines] Radial Engines
*[http://www.yspower.co.jp/en/index.html Yamada Engines]
*[http://www.yspower.co.jp/en/index.html Yamada Engines]
* [http://craftsmanshipmuseum.com/Ogawa.htm Further information.]
*[http://craftsmanshipmuseum.com/Ogawa.htm Craftmanship Museum page for Shigeo Ogawa]


[[Category:Vehicles with Wankel engines]]
[[Category:Wankel engines]]
[[Category:Companies of Japan]]
[[Category:Engineering companies of Japan]]
[[Category:Japanese brands]]
[[Category:Japanese brands]]
[[Category:Radio control]]
[[Category:Radio control]]
[[Category:Model engines]]
[[Category:Model engines]]

[[it:O.S. Engines]]
[[ja:小川精機]]
[[no:O.S Engines]]
[[fi:O.S. Engines]]
[[sv:O.S. Engines]]

Latest revision as of 11:04, 29 June 2024

O.S. Engines Mfg. Co., Ltd
Company typeSubsidiary
FoundedDecember 10, 1941 (1941-12-10) in Higashisumiyoshi-ku, Osaka, Japan
FounderShigeo Ogawa
HeadquartersHigashisumiyoshi-ku,
Osaka
,
Japan
Key people
Seiichi Arata
Total assets90,000,000 JPY (2012)
Number of employees
60 (2012)
ParentFutaba Corporation
Websitewww.os-engines.co.jp

O.S. Engines is a Japanese model engine manufacturer.

The company was founded in 1936 by machinist Shigeo Ogawa ("Ogawa Shigeo" in the Japanese surname-first tradition) for the production of model steam engines. The name of the firm could have either originated from the traditional Japanese family-name-first tradition being the source of the "OS" name, or from the firm's actual Japanese name, "Ogawa Seisakusho". At the suggestion of American buyer Paul Houghton, Ogawa tooled up for his first gasoline-powered engine, the 1.6 cc O.S. Type-1 of which 200 units were produced and exported under the brand name, "Pixie." After World War II, Ogawa Seisakusho expanded to produce the MAX line of engines, which won acclaim for their performance and durability.

O.S. 25 FSR (1977), legendary part of O.S. history, shown with muffler

In 1976, OS pioneered the field of modern four-stroke glow plug ignition model engines with the "FS-60" 10 cm3 displacement exposed valve gear engine, and has been one of the top producers of four-stroke glow-plug-ignition model engines worldwide ever since.

O.S. Engines produces a much larger line of engines that included the only available Wankel rotary aircraft engine], which was first introduced in 1970, in cooperation with Graupner of Germany.[1] Since Graupner's demise in 2012, O.S. continued to makes this 4.9 cm3 displacement engine on their own, still under license from NSU.

The 1980s brought increasing competition, which increased across the 1990s and into the 21st century. O.S. is now a leading manufacturer of single- and multi-cylinder model aircraft engines ranging from the small .10 LA two-stroke to the FF-320 four-stroke "giant-scale" flat four-cylinder and the FR7-420 Sirius7 7-Cylinder Radial Engine "giant-scale" radial.

O.S. engines in current production include the .21 TM, the .18 TZ, the .46 AX and many others. O.S. also makes required accessories for their engines including glow plugs, exhausts/mufflers and air filters.

O.S. has also extended their expertise to model cars, offering many reliable and powerful engines for these vehicles. Typical engines include OS 18 CV-R and OS 30VG. Four-strokes include FS26-C-S (0.26 ci displacement, meant to replace 0.12-0.15 two-strokes) and FS40-C-S (0.40 ci displacement, meant to replace 0.21-and-up two-strokes), with an updated FS26-C-S II currently out of production.

It is very easy to decode some facts from the engine name. In the above-mentioned four-stroke models, the C means car. This is to avoid confusing them with the aircraft engines they are based on. Additionally, an X in the name denotes a recoil start.

O.S. Engines' main competitor for both two- and four-stroke model engines is Yamada Engines (YS), also designed and produced in Japan, with the Saito Seisakusho firm being a stronger rival than the YS firm, in volume production of popular four-stroke model engines.

O.S. has also produced model steam locomotives, but has stopped production on 31st March, 2021.[2]

See also

[edit]

References

[edit]
  1. ^ Chinn, Peter (1986). Model Four-Stroke Engines. Wilton, CT USA: Air Age Publishing. pp. 74–81. ISBN 0-911295-04-6.
  2. ^ "OS Live Steam Locomotives". www.oslivesteam.com.
[edit]
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