2si was an American engine manufacturer located in

Beaufort, South Carolina Beaufort ( , different from that of Beaufort, North Carolina) is a city in Beaufort County, South Carolina, United States, and its county seat. Chartered in 1711, it is the second-oldest city in South Carolina, behind Charleston, South Carolina ...

. 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 lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...

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

snowmobile A snowmobile, also known as a snowmachine (chiefly Alaskan), motor sled (chiefly Canadian), motor sledge, skimobile, snow scooter, or simply a sled is a motorized vehicle designed for winter travel and recreation on snow. Their engines normally ...

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 Aircraft flight control system, conventional three-a ...

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. In North America, the term is commonly used to describe all forms of automobile sport including non ...

kart A go-kart, also written as go-cart (often referred to as simply a kart), is a type of small sports car, close wheeled car, open-wheel car or quadracycle. Go-karts come in all shapes and forms, from non-motorised models to high-performance ...

and

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

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

Engines

215 Year 215 ( CCXV) was a common year starting on Sunday 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''). The denomination 215 for this year ha ...

- aircraft, multifuel, industrial engine *

230 Year 230 ( CCXXX) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Agricola and Clementinus (or, less frequently, year 983 ''Ab urbe condita''). The denomination 230 for th ...

- aircraft, multifuel, industrial engine * 340 - aircraft engine *

430 __NOTOC__ Year 430 ( CDXXX) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Theodosius and Valentinianus (or, less frequently, year 1183 ''Ab urbe condita''). The deno ...

- aircraft and snowmobile engine *

460 __NOTOC__ Year 460 ( CDLX) was a leap year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Magnus and Apollonius (or, less frequently, year 1213 ''Ab urbe condita''). The denomination 460 ...

- aircraft, multifuel, marine, industrial and sport vehicle engine *

500 500 may refer to: * 500 (number) * 500 BC * AD 500 Buildings and places * 500 Boylston Street in Boston * 500 Brickell in Miami * 500 Capitol Mall in Sacramento * 500 Fifth Avenue * 500 Renaissance Center, one of seven buildings in the GM ...

- sport vehicle engine *

540 __NOTOC__ Year 540 ( DXL) was a leap year starting on Sunday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Iustinus without colleague (or, less frequently, year 1293 ''Ab urbe condita''). The deno ...

- aircraft and sport vehicle engine *

690 __NOTOC__ Year 690 ( DCXC) was a common year starting on Saturday of the Julian calendar. The denomination 690 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe ...

- 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 arti ...

- aircraft engine

References

External links

Company website archives
on

Archive.org The Internet Archive is an American non-profit organization founded in 1996 by Brewster Kahle that runs a digital library website, archive.org. It provides free access to collections of digitized media including websites, software applic ...

{{2si Aircraft engine manufacturers of the United States

Engines

See also

References

External links