| Acronym | Meaning |
![](file.png) | ECM | Electronic Countermeasures |
![](file.png) | SSG | Attack Guided Missile Submarine (conventional Powered |
![](file.png) | PENQUIN | Combat System |
![](file.png) | PHB | Photographic Bulletin (tdc 69) |
![](file.png) | MAOT | Maximum Allowable Operating Time |
![](file.png) | YRBM | Repair, Berthing And Messing Barge (non Self-propelled) |
![](file.png) | SSTD | Surface Ship Torpedo Decoy |
![](file.png) | SDB | Serial Data Bus |
![](file.png) | PD | Project Director |
![](file.png) | SRB | Safety Review Board |