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Revision as of 01:59, 11 December 2022
NZ 85 | |
---|---|
NZ 85 on display at the National Technical Museum (Prague) | |
Type | Radial aero engine |
National origin | Czechoslovakia |
Manufacturer | Walter Aircraft Engines |
First run | 1926 |
Number built | 50 |
Developed from | Walter NZ 60 |
Developed into | Walter Venus |
The Walter NZ 85 was a seven-cylinder, air-cooled, radial engine for aircraft use built in Czechoslovakia by Walter Aircraft Engines in the late-1920s.
Design and development
Using common cylinders and parts from the earlier Walter NZ 60 (Novák-Zeithammer) engine the NZ 85 and the nine-cylinder NZ 120 were designed together.[1] Lightened and tuned developments were known as the NZ 90 and NZ 95.
Applications
- Aero A.34
- Avia BH-20
- Avia BH-29
- Breda Ba.15
- Couzinet 30 (intended application)
- Gribovsky G-8
- Hopfner HS-8/29
- IMAM Ro.5
- Letov Š-118
- Orta-Saint Hubert G.1
- Savoia-Marchetti S.56
- Shavrov Sh-1
Specifications (NZ 85)
Data from Němeček.[2]
General characteristics
- Type: Five-cylinder radial piston engine
- Bore: 105 mm (4.13 in)
- Stroke: 120 mm (4.72 in)
- Displacement: 7.27 L (444 cu in)
- Length: 741 mm (29.2 in)
- Diameter: 990 mm (39.0 in)
- Dry weight: 125 kg (276 lb)
Components
- Fuel system: Zenith carburettor
- Cooling system: Air-cooled
Performance
- Power output: 74 kW (99 hp)
See also
Comparable engines
Related lists
References
Wikimedia Commons has media related to Walter NZ-85.
- Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
- Němeček, Václav. Československá letadla I (1918-1945) (Czechoslovak Aircraft I (1918-1945)). Third edition, Naše vojsko, Prague. 1983.