Zenoah G 50

Development

The Zenoah G-50 is equipped with single capacitor discharge ignition and dual Mikuni slide-type carburetors. It is equipped with a recoil starter system or optionally electric start and a 2.1 or 2.6:1 belt reduction drive.

The engine runs on a mixture of unleaded auto fuel and oil.

Producing 45 hp (34 kW) at 5800 rpm, the G-50 competed in the early 1980s ultralight powerplant market against the similar Rotax 447. Production of the engine was completed in the late 1980s and today only used engines and parts are available.

Variants

G50C

Twin-cylinder, horizontally opposed, two stroke, dual-carburetor, fan cooled aircraft engine.

G50D

Twin-cylinder, horizontally opposed, two stroke, dual-carburetor, free air cooled aircraft engine.

G50DFW

Twin-cylinder, horizontally opposed, two stroke, dual-carburetor, free air cooled aircraft engine, configured for firewall mounting, recoil starting not available.

Applications

AmeriPlanes Mitchell Wing T-10

Eagles Wing Scout

Goodwin Buckshot

TEAM 1200Z Z-MAX

TEAM 1300Z Z-MAX

NWT Spruce Coupe

Tennessee Propellers Scout

Specifications (G-50C)

Data from Cliche & Tennessee Propellers

General characteristics

Type: Two cylinder, two-stroke aircraft engine

Bore: 72 mm (2.8 in)

Stroke: 59.5 mm (2.3 in)

Displacement: 484 cc (29.54 cu in)

Length: 14.96 in (380.0 mm)

Width: 23.39 in (594.1 mm)

Height: 15.00 in (381.0 mm)

Dry weight: 90 lb (40.8 kg) equipped with reduction drive, electric start and muffler

Components

Valvetrain: piston ported

Fuel type: unleaded auto fuel

Oil system: pre-mixed

Cooling system: free air

Reduction gear: 2.1 or 2.6:1 belt system

Performance

Power output: 45 hp (34 kW) at 5800 rpm

Compression ratio: 6.5:1