Known as the Drop Battery , it was designed with emplacements for eight 8 - inch guns .
In the 1850s a gun battery was built , as part of Dover 's coast artillery defences , on the slope below Drop Redoubt .
Known as the Drop Battery , Drop Redoubt was designed with emplacements for eight 8 - inch guns .
In the 1850s a gun battery was built , as part of Dover 's coast artillery defences , on the slope below Drop Redoubt .