Kawasaki 340

Last updated
Kawasaki 340
Type Two-cylinder two-stroke engine
National origin Japan
Manufacturer Kawasaki Heavy Industries
Produced until the early 1980s

The Kawasaki 340 is a Japanese twin-cylinder, in-line, two-stroke engine that was designed for snowmobiles and produced by Kawasaki Heavy Industries until the early 1980s. The engine was available in air-cooled and liquid-cooled versions. [1]

Japan Constitutional monarchy in East Asia

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south.

Straight engine engine configuration

The straight or inline engine is an internal-combustion engine with all cylinders aligned in one row and having no offset. Usually found in four, six and eight cylinder configurations, they have been used in automobiles, locomotives and aircraft, although the term in-line has a broader meaning when applied to aircraft engines, see Inline engine (aviation).

Snowmobile land vehicle designed for winter travel on snow

A snowmobile, also known as a motor sled, motor sledge, skimobile, snowscooter, or snowmachine, 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 require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby.

Contents

The engine was widely adapted for other purposes, including ultralight aircraft. Kawasaki did not condone or support the use of the engine in aircraft and it was largely supplanted in this role by the similar purpose-designed Rotax 377 aircraft engine. [1]

The Rotax 377 is a 35 hp (26 kW), twin-cylinder, two-stroke aircraft engine, that was built by BRP-Rotax GmbH & Co. KG of Austria for use in ultralight aircraft.

Design and development

The Kawasaki 340 is very similar in design to the Kawasaki 440, using a smaller piston. [1]

The Kawasaki 440, also called the T/A 440, is a Japanese twin-cylinder, in-line, two-stroke engine that was designed for snowmobiles and produced by Kawasaki Heavy Industries until the early 1980s.

The engine has two cylinders in an in-line configuration. The single ignition system uses a coil and points. Fuel is metered by a carburetor and the engine has oil injection. Starting is by a recoil starter system with electric start as an option. [1]

Carburetor device that mixes air and fuel for internal combustion engines

A carburetor or carburettor is a device that mixes air and fuel for internal combustion engines in the proper air–fuel ratio for combustion. It is sometimes colloquially shortened to carb in the UK and North America or carby in Australia. To carburate or carburet means to mix the air and fuel or to equip with a carburetor for that purpose.

In its aircraft applications the 340 uses one of several available aftermarket reduction drive systems to reduce the maximum 6800 rpm to a speed more manageable for propeller use. [1]

Variants

340-FA
Free Air-cooled version [1]
340-LC
Liquid-cooled version [1]

Applications

The Fisher Boomerang is a single-seat conventional landing gear, high-winged monoplane ultralight aircraft designed by Michael Fisher and introduced in mid-1982.

The Fly Hard Trikes SkyCycle is an American ultralight trike, designed by Mike Theeke and produced by Fly Hard Trikes of Wildwood, Georgia. The aircraft is supplied as a complete ready-to-fly-aircraft and several hundred have been completed and flown.

Specifications (340-LC)

Data from Ragwing Aviation [1] & Kitplanes [2]

General characteristics

Components

  • Fuel system: carburetor
  • Oil system: oil injection
  • Cooling system: liquid-cooled
  • Reduction gear: aftermarket reduction drive for aircraft use

Performance

  • Power output: 35 hp (26 kW) at 6800 rpm

See also

Related development

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References

  1. 1 2 3 4 5 6 7 8 Ragwing Aircraft Designs (2006). "KAWASAKI 340 engines" . Retrieved 17 November 2010.
  2. ↑ Downey, Julia: 1999 Kit Aircraft Directory, Kitplanes, Volume 15, Number 12, December 1998, page 62. Primedia Publications. ISSN 0891-1851
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