Walter Junior
The Walter Junior was a family of four cylinder air cooled inverted inline engines produced by Walter Aircraft Engines in Czechoslovakia in the 1930s for aircraft, characterised by a bore and stroke of, a displacement of and producing roughly.
The Junior was also built in Poland as the P.Z. Inż. Junior.
Variants
;Walter Junior 4-I;Walter Junior-Major
;P.Z. Inż. Junior
;Elizalde J4