Naval unit successfully tests its own defensive underwater mine belts to ensure they are working properly
DEPTH CHARGES. Mine sweeper at work in defensive mine-belts dropping d.charges..mines explode
MINES & MINESWEEPERS AND MINELAYING. R.N. minesweeper at work testing mines in defensive-mine-belts..going off..signal lamp gives stand-by..depth charges dropped
NAVAL. Naval Unit out testing defensive mine-belts..depth charges..mines going off..crew get fish after mines go off..signal lamp gives stand-by.
SIGNALLING & SIGNALS C.U. signal lamp gives stand by for dropping depth charges etc. on minesweeper..(testing mine-belt)
Munitions and Armaments; Explosions; Military - Active
magnetic mines, acoustic mines, explosion, WWII, ship
Background: Naval unit successfully tests its own defensive underwater mine belts to ensure they are working properly