Editing Battle of Xiangyang (section)

== Role of Chinese-designed gunpowder weapons ==

[[Image:Chuangzi Nu1.jpg|thumb|280px|Chuangzi Nu<ref name=bm/>]]

Both the Song and Mongol forces had thunder crash bombs during the siege, a type of gunpowder weapon. The Mongols also utilized siege crossbows and traction trebuchets. The Song forces used [[fire arrow]]s and [[fire lance]]s in addition to their own thundercrash bombs. The Song forces also used [[Paddle steamer#China|paddle ships]].<ref>{{cite book|url=https://books.google.com/books?id=0TjxaHltoY0C&dq=xiangyang+siege&pg=PA12|title=Siege weapons of the Far East: AD 960-1644 |author1=Turnbull |first=Stephen |author-link=Stephen Turnbull (historian) |year=2002|publisher=Osprey Publishing|edition=illustrated|isbn=1-84176-340-3|page=12|access-date=2010-10-28}}</ref> Siege crossbows and firebombs were also deployed on Song ships against Mongol forces, in addition to fire lances.<ref>{{cite book|url=https://books.google.com/books?id=N2MMD0yfxyAC&dq=xiangyang+siege&pg=PA63|title=Genghis Khan & the Mongol conquests, 1190-1400 |author1=Turnbull |first=Stephen R.|author-link=Stephen Turnbull (historian) |year=2003|publisher=Osprey Publishing|edition=illustrated|isbn=1-84176-523-6|page=63|access-date=2010-10-28}}</ref> The name of the bombs in Chinese was Zhen tian lei. They were made from cast iron and filled with gunpowder, the Chinese Song forces delivered them to the enemy via trebuchets. Armor made out of iron could be penetrated by pieces of the bomb after the explosion, which had a 50-kilometre{{clarify|date=September 2019}} noise range.<ref>{{cite book|url=https://books.google.com/books?id=04S4YdDarD0C&dq=xiangyang+siege&pg=PA356|title=The Hutchinson dictionary of ancient & medieval warfare|author1=Bennett|first=Matthew|author-link=Matthew Bennett (historian)|editor=Matthew Bennett|year=2008|publisher=Taylor & Francis|isbn=978-1-57958-116-9|page=356|access-date=2010-10-28}}</ref>