GEN 125

Last updated
GEN 125
Type Aircraft engine
National origin Japan
Manufacturer GEN Corporation
Major applications GEN H-4

The GEN 125 is a Japanese aircraft engine, designed and produced by the GEN Corporation for use in ultralight helicopters. [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.

Aircraft engine Engine designed for use in powered aircraft

An aircraft engine is a component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines, except for small multicopter UAVs which are almost always electric aircraft.

GEN Corporation of Japan developed a personal helicopter named the GEN H-4, but production was deferred pending large enough orders to make the aircraft economical.

Contents

Design and development

The engine is a twin cylinder two-stroke, horizontally-opposed, air-cooled, 124 cc (7.6 cu in), direct-drive, gasoline engine design. It employs capacitor discharge ignition and produces 8 hp (6 kW) at 8500 rpm. The engine weighs 3 kg (6.6 lb). [1]

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 was originally developed to overcome the long charging times associated with high inductance coils used in inductive discharge ignition (IDI) systems, making the ignition system more suitable for high engine speeds. The capacitive-discharge ignition uses capacitor discharge current to the coil to fire the spark plugs.

The engine was designed specifically for the GEN H-4 helicopter, in which four of the engines are mounted to provide redundancy. [1]

The GEN H-4 is a Japanese helicopter under development by GEN Corporation of Nagano. The aircraft is intended to be supplied as a kit for amateur construction.

Variants

GEN 125
Base model producing 8 hp (6 kW) [1]
GEN 125-F
Model producing 10 hp (7 kW) [1]

Applications

Specifications (GEN 125)

Data from World Directory of Leisure Aviation 2011-12 [1]

General characteristics

Components

  • Fuel type: gasoline
  • Cooling system: liquid or air

Performance

  • Power output: 8 hp (6 kW) at 8500 rpm

See also

Related lists

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References

  1. 1 2 3 4 5 6 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, pages 191 and 238-239. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X
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