Walter NZ 85The 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 developmentUsing common cylinders and parts from the earlier Walter NZ 60 engine the NZ 85 and the nine-cylinder NZ 120 were designed together. 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 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