Walter NZ 120
1920s Czech piston aircraft engine
From Wikipedia, the free encyclopedia
The Walter NZ 120 was a nine-cylinder, air-cooled, radial engine for aircraft use. It was built in Czechoslovakia by Walter Aircraft Engines in the 1920s. Using common cylinders and parts from the NZ (Novák-Zeithammer) range of engines the NZ 120 produced up to 135 horsepower (99 kW).[1]
| NZ 120 | |
|---|---|
| Walter NZ 120 on display at the Aviation Museum of Central Finland | |
| Type | Radial aero engine |
| National origin | Czechoslovakia |
| Manufacturer | Walter Aircraft Engines |
| First run | 1920s |
Applications
Specifications
General characteristics
- Type: Nine-cylinder radial piston engine
- Bore: 105 mm (4.134 in)
- Stroke: 120 mm (4.724 in)
- Displacement: 9.352 L (570.7 cu in)
- Dry weight: 148 kg (326 lb)
Components
- Valvetrain: Overhead valve, two poppet valves per cylinder
- Cooling system: Air-cooled
- Reduction gear: Direct drive
Performance
- Power output: 99.3 kW (135 hp) at 1,750 rpm (take-off power)
- Compression ratio: 4.48:1
