| Term | History |
|---|
| 1 | Became a Engineer/Gunner at age 18 |
| 1 | Is now a Crewman |
| 1 | Special assignment or duty on board ship. |
| 1 | Commissioned in Navy/Engineer/Gunner |
| 1 | Is now a Ensign |
| 1 | Promoted to Engineer/Gunner officer rank 2 |
| 1 | Is now a Sublieutenant |
| 2 | Continued as Engineer/Gunner at age 22 |
| 2 | Vessel participates in a notable military engagement. |
| 2 | Promoted to Engineer/Gunner officer rank 3 |
| 2 | Is now a Lieutenant |
| 3 | Continued as Engineer/Gunner at age 26 |
| 3 | Vessel participates in a diplomatic mission. |
| 3 | Gain a contact. |
| 3 | Promoted to Engineer/Gunner officer rank 4 |
| 3 | Is now a Commander |
| 4 | Continued as Engineer/Gunner at age 30 |
| 4 | Vessel participates in a diplomatic mission. |
| 4 | Gain a contact. |
| 4 | Promoted to Engineer/Gunner officer rank 5 |
| 4 | Is now a Captain |
| 5 | Continued as Engineer/Gunner at age 34 |
| 5 | Vessel participates in a notable military engagement. |
| 5 | Promoted to Engineer/Gunner officer rank 6 |
| 5 | Is now a Admiral |
| 6 | Continued as Engineer/Gunner at age 38 |
| 6 | Good fortune |
| 6 | Promoted to Engineer/Gunner officer rank 7 |
| 7 | Aging Crisis. Owe 50,000 for medical bills. |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Vessel participates in a notable military engagement. |
| 7 | Promoted to Engineer/Gunner officer rank 8 |
| 8 | Aging Crisis. Owe 60,000 for medical bills. |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | Special assignment or duty on board ship. |
| 8 | Promoted to Engineer/Gunner officer rank 9 |
| 8 | Forced to muster out. |
| 9 | Aging Crisis. Owe 10,000 for medical bills. |