3"/70 Mark 26 gun

The 3"/70 Mark 26 Gun was developed to protect United States warships from Japanese kamikaze attacks in World War II, based on the 3"/50 caliber gun. The name indicates in US Navy terminology that this piece of naval artillery fires a projectile 3 in (76 mm) in diameter and has a barrel length of 70 calibers [barrel length = 3" × 70 = 210 in (18 ft; 5.3 m)].

3"/70 Mark 26 gun

The 3"/70 Mark 26 Gun was developed to protect United States warships from Japanese kamikaze attacks in World War II, based on the 3"/50 caliber gun. The name indicates in US Navy terminology that this piece of naval artillery fires a projectile 3 in (76 mm) in diameter and has a barrel length of 70 calibers [barrel length = 3" × 70 = 210 in (18 ft; 5.3 m)].