| surfacing drill | 1.58 | After lunch came the emergency surfacing drill. | ||
| surfacing maneuver | 0.66 | The USS Greenville rammed the Ehime Maru while practicing an emergency surfacing maneuver. |
| surfacing drill | 1.58 | After lunch came the emergency surfacing drill. | ||
| surfacing maneuver | 0.66 | The USS Greenville rammed the Ehime Maru while practicing an emergency surfacing maneuver. |