Model 50 may refer to:
Aircraft Aeronca Model 50 Chief, a civil utility aircraft first flown in 1938 Beech Model 50 Twin Bonanza, a twin-piston-engine utility aircraft introduced in 1951 Boeing Model 50, also known as the Boeing XPB, a one-of-a-kind flying boat first flown in 1925 Curtiss Model 50 Robin, a high-wing monoplane introduced in 1928 Fleet Model 50 Freighter, a twin-engine biplane transport aircraft first flown in 1938
Firearms Model 50 Reising, a submachine gun produced by Harrington & Richardson Smith & Wesson Model 50, a double-action revolver
Motorcycles Norton Model 50, a touring motorcycle Model 50 WLA, a military motorcycle produced by Harley-Davidson during World War II
Other IBM PS/2 Model 50, a midrange member of the PS/2 family of personal computers IBM System/360 Model 50, a midrange member of the System/360 family of mainframe computers Obusier de 155 mm Modèle 50, a French field howitzer produced during the Cold War VAX 4000 Model 50, an upgrade kit for two of Digital Equipment Corporation's low-end superminicomputers
See also M50 (disambiguation) Type 50 (disambiguation)