U-boat Archive - Design Studies - Type XXI
Bilge and Ballast Systems for Ships Machinery Spaces
A Guide To Ballast Tanks On Ships
4 Engineering Considerations, Tanker Spills: Prevention by Design
SS-417 USS Tench Patch - Version A, Submarine Patches, Navy Patches
Sounding pipes, Air pipes and Ventilators – Captain Damley
Submarines - D-Day Analysis - Revora Forums
Tanks and Pumping Systems
Appendix K, Double-Hull Tanker Legislation: An Assessment of the Oil Pollution Act of 1990
Cross-section of cargo vessel showing arrangement of ballast tanks