Flintlock, a firing mechanism used on early firearms. It was first used on muskets about 1650, later on pistols. The cock, or hammer, of the flintlock held a piece of flint which, when the trigger was pulled, struck a piece of steel and caused sparks to fly. The sparks ignited a small priming charge of powder in a pan, which was uncovered as the flint struck the steel. The fire flashed through a touchhole, exploding the main powder charge and discharging the ball (bullet). By about 1850 flintlocks had been replaced by percussion locks.
The Soviet T-72 Main Battle Tank was heavily armored and served through the fall of the Soviet Union. This tank featured up to 11 inches of armor on the front of the turret and eight inches everywhere else. Explore features of the T-72 Main Battle Tank.
The Focke Wulf Fw 190 was fast and maneuverable, and packed a heavy armament package, usually of four machine guns and two cannons. Provision was made for carrying a bomb or a drop-tank under the fuselage centerline. Check out this WWII fighter.