Avia M 332

The Avia M 332 (originally known as the Walter M332) is an air-cooled four-cylinder inverted inline engine. It was designed by Bohumil Šimůnek, of Motorlet Walter Aircraft Engines, as a more powerful replacement for the four-cylinder Walter Minor engine, going into production in 1958. Piston aircraft engine production was transferred from Walter to Avia in 1964, the engine becoming the Avia M 332.

M 332
Walter M 332 on display at the Polish Aviation Museum
Type	four-cylinder inverted inline piston engine
National origin	Czechoslovakia
Manufacturer	Walter Aircraft Engines/Avia/LOM
Designer	Bohumil Šimůnek
Major applications	Aero 145 Orličan L-40 Meta Sokol

Applications

• Aero 145
• Carlson Criquet
• Frontier MD-II
• Fry Esprit VFII
• Kharkov KhAI-24
• Orličan L-40 Meta Sokol
• Rolandas Kalinauskas RK-5 Ruth

Specifications

Data from Jane's All The World's Aircraft 1971-72 ^[1]

General characteristics

• Type: 4-cylinder inverted air-cooled supercharged inline engine
• Bore: 105 mm (4.13 in)
• Stroke: 115 mm (4.53 in)
• Displacement: 3.98 L (247.9 in³)
• Length: 1,102 mm (43.4 in)
• Width: 425 mm (16.7 in)
• Height: 628 mm (24.7in)
• Dry weight: 102 kg (225 lb)

Components

• Valvetrain: two camshaft operated valves per cylinder, sodium filled exhaust valve
• Supercharger: Centrifugal
• Fuel system: Low pressure fuel injection
• Fuel type: Min 72 octane unleaded or 80 octane leaded
• Oil system: Dry sump pressure feed
• Cooling system: Air-cooling

Performance

• Power output: 104 kW (140 hp) at 2,700 rpm (take-off)

See also

Related lists

• List of aircraft engines