Title:MINESWEEPING PART 2: INFLUENCE SWEEPS - ACOUSTIC [Main Title]
Film Number:DRN 1640B
Other titles:
Summary: Naval training film on the deployment and recovery of the Combined Towed Acoustic (CTA) minesweeping rig from the coastal minesweeper HMS Ashton (M.1198) . With detailed description of the towing rig and the three main types of acoustic sweep the Acoustic Hammer (AH), the Pipe Noise Maker (PNM) and the Acoustic Displacer (AD).