 QF 3-pounder Hotchkiss

The QF 3-pounder Hotchkiss or in French use Canon Hotchkiss à tir rapide de 47 mm were a family of long-lived light naval guns introduced in 1886 to defend against new, small and fast vessels such as torpedo boats and later submarines.There were many variants produced, often under license which ranged in length from 32 to 50 calibers but 40 caliber was the most common version.