The 2si 808 is a family of in-line three cylinder, liquid-cooled,
two-stroke
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of ...
, dual ignition,
aircraft engines that were designed for
ultralight aircraft.
[Purdy, Don: ''AeroCrafter - Homebuilt Aircraft Sourcebook'', page 69. BAI Communications. ]
The basic engine was originally designed and produced by
JLO-Motorenwerke 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 was later acquired by the
AMW Cuyuna Engine Company
2si was an American engine manufacturer located in Beaufort, 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 S ...
of
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 ...
and marketed under the ''Cuyuna'' brand name. Later the engine was marketed by Cuyuna under the
Two Stroke International
2si was an American engine manufacturer located in Beaufort, 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 S ...
(2si) brand. Cuyuna no longer markets engines for aircraft use and the 808 is out of production.
[Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-2 Cybair Limited Publishing, 2001. ]
Development
The 808 is a conventional three-cylinder engine that weighs in its L95 and L100 aircraft versions. The engine features dual
capacitor discharge ignition
Capacitor discharge ignition (CDI) or thyristor ignition is a type of automotive electronic ignition system which is widely used in outboard motors, motorcycles, lawn mowers, chainsaws, small engines, turbine-powered aircraft, and some cars. It ...
, liquid cooling, fuel pump, a cast iron cylinder liner, ball, needle and roller bearings throughout. The aircraft version was offered with an optional gearbox reduction system. Starting is electric starter only.
Variants
;808 L95
:Gasoline aircraft engine with three carburetors, at 7000 rpm, weight , out of production.
;808 L100
:Gasoline aircraft engine with three carburetors, at 7000 rpm, weight , out of production.
Applications
*
Bede BD-5
The Bede BD-5 Micro is a series of small, single-seat homebuilt aircraft created in the late 1960s by US aircraft designer Jim Bede and introduced to the market primarily in kit form by the now-defunct Bede Aircraft Corporation in the early 19 ...
*
Reflex Lightning Bug
*
Rowley P-40F
Specifications (808 L100 aircraft engine)
See also
References
{{2si
Two-stroke aircraft piston engines
Straight-three engines