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<p><b>New page</b></p><div>[[File:WWI_shells.JPG|thumb|WWI shells]] '''Shell (projectile)'''<br />
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A '''shell''' is a payload-carrying projectile that, as opposed to a [[bullet]], contains an explosive or other filling, though modern usage sometimes includes large solid projectiles properly termed [[shot (projectile)|shot]]. Shells are typically large-caliber projectiles fired by [[artillery]], [[combat vehicle|combat vehicles]], and [[warship|warships]]. The term is often used to refer to a [[high-explosive shell]], but historically, it has also been used for other types of shells, including [[armor-piercing shell|armor-piercing]], [[chemical shell|chemical]], and [[incendiary shell|incendiary]] shells.<br />
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==History==<br />
The development of the shell can be traced back to the 15th century when early forms of explosive projectiles were used in [[cannon|cannons]]. These early shells were made of hollowed-out [[iron]] filled with [[gunpowder]] and ignited by a fuse. The modern shell evolved significantly during the 19th and 20th centuries, with advancements in [[explosives]], [[metallurgy]], and [[aerodynamics]].<br />
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==Types of Shells==<br />
Shells can be classified into several types based on their design and intended use:<br />
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* '''[[High-explosive shell]]''': Contains a large amount of explosive material designed to cause maximum damage through blast and fragmentation.<br />
* '''[[Armor-piercing shell]]''': Designed to penetrate armor plating before exploding.<br />
* '''[[Chemical shell]]''': Filled with chemical agents such as [[mustard gas]] or [[sarin]].<br />
* '''[[Incendiary shell]]''': Contains materials that ignite upon impact, causing fires.<br />
* '''[[Shrapnel shell]]''': Designed to release a large number of small projectiles upon detonation.<br />
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==Components==<br />
A typical shell consists of several key components:<br />
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* '''[[Casing]]''': The outer shell, usually made of metal, which holds all other components.<br />
* '''[[Fuze]]''': A device that initiates the explosive charge. Fuzes can be [[impact fuze|impact]], [[time fuze|time]], or [[proximity fuze|proximity]] based.<br />
* '''[[Explosive charge]]''': The main explosive material within the shell.<br />
* '''[[Driving band]]''': A soft metal band around the shell that engages the rifling of the gun barrel to impart spin for stability.<br />
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==Usage==<br />
Shells are used in various military applications, including:<br />
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* '''[[Field artillery]]''': Used to support ground troops by targeting enemy positions.<br />
* '''[[Naval artillery]]''': Fired from warships to engage other ships or shore targets.<br />
* '''[[Tank]]s''': Used in tank guns to engage armored vehicles and fortifications.<br />
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==Related Pages==<br />
* [[Artillery]]<br />
* [[Bullet]]<br />
* [[Explosive]]<br />
* [[Gunpowder]]<br />
* [[Cannon]]<br />
* [[Armor-piercing shell]]<br />
* [[High-explosive shell]]<br />
* [[Chemical shell]]<br />
* [[Incendiary shell]]<br />
* [[Shrapnel shell]]<br />
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==Categories==<br />
[[Category:Projectiles]]<br />
[[Category:Explosives]]<br />
[[Category:Artillery]]<br />
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