These are torpedo - shaped towed bodies , similar in shape to a Harvey Torpedo , that are streamed from the sweeping vessel thus keeping the sweep at a determined depth and position .
Minesweepers protect themselves with an oropesa or paravane instead of a second minesweeper .
These are torpedo - shaped towed Minesweepers , similar in shape to a Harvey Torpedo , that are streamed from the sweeping vessel thus keeping the sweep at a determined depth and position .
Minesweepers protect themselves with an oropesa or paravane instead of a second minesweeper .