Walter NZ 85 explained

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

References

• Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989.
• Němeček, Václav. Československá letadla I (1918-1945) (Czechoslovak Aircraft I (1918-1945)). Third edition, Naše vojsko, Prague. 1983.

Notes and References

1. Gunston 1989, p. 174.