M2ブラッドレー歩兵戦闘車
On land vessels, such as tanks or other military vehicles, and on naval warships, a sponson may refer to a mounting or enclosure projecting from the side or top of the structure/hull that is not used for buoyancy, but for armaments such as machine guns, or for purposes of visibility. It can be used for storage as well as a transport platform for people entering or leaving the vehicle. It may also provide layers of bulletproof protection and storage space, as found over the tracks of the Bradley Fighting Vehicle.