Puteaux SA 18

Puteaux SA 18
Puteaux SA 18
	Preserved SA 18 in the Saumur armour museum
Type	Tank gun
Place of origin	France
Service history
In service	1918 – 1980s
Wars	World War I; Russian Civil War; Estonian War of Independence; Turkish War of Independence; Polish-Soviet War; Warlord Era; Rif War; São Paulo Revolt of 1924; Great Syrian Revolt; Brazilian Revolution of 1930; Brazilian Constitutionalist War; Chinese Civil War; Spanish Civil War; Winter War; World War II; Franco-Thai War; 1947–1949 Palestine war; First Indochina War; Soviet–Afghan War;
Production history
Designer	Puteaux
Designed	1917
Manufacturer	Puteaux
Specifications
Mass	88 kg (194 lb)
Barrel length	777 mm (30.59 in) L/21
Cartridge	37×94mmR
Caliber	37 mm (1.46 in)
Rate of fire	Max: 15 rpm; Practical: 10 rpm
Muzzle velocity	AP: 410 m/s (1,300 ft/s); APCR: 600 m/s (2,000 ft/s); APDS: 600 m/s (2,000 ft/s); HE: 410 m/s (1,300 ft/s);

The Puteaux SA 18 was a French single-shot, breech-loading cannon, used in World War I through World War II, primarily mounted on combat vehicles. It is a development of the Canon de 37 mm à tir rapide Modèle 1916 (SA 16), also produced by Puteaux.