The Stratus EA 81 is an American
aircraft engine, produced by
Stratus 2000 of
Corvallis, Oregon for use in
homebuilt aircraft
Homebuilt aircraft, also known as amateur-built aircraft or kit planes, are constructed by persons for whom this is not a professional activity. These aircraft may be constructed from "scratch", from plans, or from assembly kits.Armstrong, Kenn ...
.
[Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', pages 240-243. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X]
Design and development
The engine is based upon the
Subaru EA 81 automotive engine
, there were a wide variety of propulsion systems available or potentially available for automobiles and other vehicles. Options included internal combustion engines fueled by petrol, diesel, propane, or natural gas; hybrid vehicles, plug-in ...
. It is a four-cylinder
four-stroke, , liquid-cooled, gasoline engine design, with a belt-type
reduction drive
A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small scale version using ball bearings in an epicyclic arrangement instead of toothed gears.
Reduction drives are used in engines of all kinds ...
with a reduction ratio of 2.2:1. It employs
electronic ignition
An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines, oil-fired and gas-fired boilers, rocket engines, etc. The widest application for spark i ...
and produces at 5400 rpm.
The company seems to have gone out of business about 2008 and production ended.
Applications
*
Airdale Backcountry
*
Cessna 150
The Cessna 150 is a two-seat tricycle gear general aviation airplane that was designed for flight training, touring and personal use.Plane and Pilot: ''1978 Aircraft Directory'', pages 22-23. Werner & Werner Corp, Santa Monica CA, 1977. In 19 ...
*
Zenith CH 601
Specifications (EA 81)
See also
References
{{Reflist
Stratus aircraft engines
1990s aircraft piston engines