Walter NZ 60The Walter NZ 60 was a five-cylinder, air-cooled, radial engine for aircraft use built in Czechoslovakia by Walter Aircraft Engines in the 1920s.Applications Albert A-20 ANBO II Avia BH-9 Avia BH-10 Avia BH-11 Avia BH-12 DUS III Ptapta Gribovsky G-8 Kalinin K-9 Pander E