2si was an American engine manufacturer located in

Beaufort, South Carolina Beaufort ( , a different pronunciation from that used by the city with the same name in North Carolina) is a city in and the county seat of Beaufort County, South Carolina, United States. Chartered in 1711, it is the second-oldest city in South ...

. The company was a wholly owned subsidiary of the AMW Cuyuna Engine Company, formerly known as the ''Cuyuna Development Company''.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-2 Cybair Limited Publishing, 2001. Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 69. BAI Communications. Cuyuna Development Company: ''Cuyuna Engines'', Cuyuna Development Company, undated The company acquired a line of two-stroke engines that were originally designed and produced by ''JLO'' of

Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...

and marketed them under the ''Cuyuna'' brand name for

snowmobile A snowmobile, also known as a Ski-Doo, snowmachine, sled, motor sled, motor sledge, skimobile, or snow scooter, is a motorized vehicle designed for winter travel and recreation on snow. It is designed to be operated on snow and ice and does not ...

and later

ultralight aircraft Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with ailer ...

use. Later Cuyuna formed a subsidiary ''Two Stroke International'', commonly known as ''2si'', to produce and market the engine line. Cuyuna ended selling engines for aircraft use, but instead switched to marketing them only for industrial, marine,

auto racing Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition. Auto racing has existed since the invention of the automobile. Races of various sorts were organise ...

kart Kart racing or karting is a road racing variant of motorsport with open-wheel, four-wheeled vehicles known as go-karts or shifter karts. They are usually raced on scaled-down circuits, although some professional kart races are also held on ful ...

and

all-terrain vehicle An all-terrain vehicle (ATV), also known as a light utility vehicle (LUV), a quad bike, or simply a quad, as defined by the American National Standards Institute (ANSI); is a vehicle that travels on low-pressure tires, with a seat that is stra ...

applications. The company seems to have gone out of business in 2014.

Engines

215 Year 215 ( CCXV) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Laetus and Sulla (or, less frequently, year 968 ''Ab urbe condita''). ...

- aircraft, multifuel, industrial engine *

230 Year 230 (Roman numerals, CCXXX) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Agricola and Clementinus (or, less frequently, year ...

- aircraft, multifuel, industrial engine *

340 Year 340 (Roman numerals, CCCXL) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Acindynus and Valerius (or, less frequently, year 1093 ...

- aircraft engine * 430 - aircraft and snowmobile engine * 460 - aircraft, multifuel, marine, industrial and sport vehicle engine * 500 - sport vehicle engine * 540 - aircraft and sport vehicle engine *

690 __NOTOC__ Year 690 (Roman numerals, DCXC) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. The denomination 690 for this year has been used since the early medieval period, when the Anno Domi ...

- aircraft, marine, industrial engine *

808 808 may refer to: Music * Roland-808, Roland TR-808, a drum machine * 808 (film), ''808'' (film), a documentary about the Roland TR-808 * 808 State, British electronic group * ''808s & Heartbreak'', the fourth studio album by American Hip hop artis ...

- aircraft engine

References

External links

Company website archives
on

Archive.org The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, ...

{{2si Aircraft engine manufacturers of the United States

Engines

See also

References

External links