Artillery Stock Photography

The cannon is Europe in the 16th century (1500 a 1520) made a ship-based cannon, introduced into China in the late of Ming dynasty, also known as red cannons. Does have advantages in design and long, wall is very thick, and from the muzzle to cannon tail bold gradually, in line with the bore pressure from high to the end, when burned, gunpowder principle; At the center of gravity gun trunnion of cylindrical, artillery to shaft can be adjusted as shot Angle, with gunpowder dosage change range; Equipped with accuracy and photo, calculated in accordance with the parabolic trajectory, a high accuracy. Most of the red yi cannon at about 3 meters long, 110-130 mm in diameter, in more than 2 tons in weight.