Type 45 240 mm howitzer: Howitzer, Mortar (weapon), Siege of Port Arthur, Krupp, Gun Barrel, Muzzle Velocity

High Quality Content by WIKIPEDIA articles! The Type 45 240 mm howitzer ( ??????????, Yonjy?-shiki Nijy?-senchi Ry?danh??) was a siege gun used by the Imperial Japanese Army during World War I and World War II. It was the first such weapon to be entirely designed in Japan.The Type 45 was developed after the Russo-Japanese War showed the value of heavy caliber howitzers and mortars when attacking strongly fortified enemy positions. The heavy weapons used by the Japanese Army at the Siege of Port Arthur were Krupp-designed weapons imported from Germany. The Type 45 was the first such weapon designed and built entirely in Japan, and entered service in 1912. It was usually deployed as part of coastal artillery batteries.