| Term | History |
|---|
| 1 | Became a Line/Crew at age 18 |
| 1 | Is now a Crewman |
| 1 | Advanced training in a specialist field |
| 1 | Promoted to Line/Crew rank 1 |
| 1 | Is now a Able Spacehand |
| 2 | Continued as Line/Crew at age 22 |
| 2 | Vessel participates in a diplomatic mission. |
| 3 | Continued as Line/Crew at age 26 |
| 3 | Good fortune |
| 3 | Promoted to Line/Crew rank 2 |
| 3 | Is now a Petty Officer, 3rd class |
| 4 | Voluntarily left Line/Crew |
| 4 | Became a Field Researcher at age 30 |
| 4 | A disaster or war strikes. |
| 4 | Scarred. Fully recovered. Owe 2,500 for medical bills. |
| 4 | The planetary government interferes with your research for political or religious reasons. You continue working openly and gain an Enemy. |
| 4 | Promoted to rank 1 |
| 5 | Continued as Field Researcher at age 34 |
| 5 | An expedition or voyage goes wrong, leaving you stranded in the wilderness. |
| 6 | Switched to Engineer/Gunner at age 38 |
| 6 | Vessel participates in a diplomatic mission. |
| 6 | Promoted to Engineer/Gunner rank 3 |
| 6 | Is now a Petty Officer, 2nd class |
| 7 | Continued as Engineer/Gunner at age 42 |
| 7 | Special assignment or duty on board ship. |
| 7 | Promoted to Engineer/Gunner rank 4 |
| 7 | Is now a Petty Officer, 1st class |
| 8 | Continued as Engineer/Gunner at age 46 |
| 8 | You are falsed accused for an accident that causes the death of several crew members. Gain the officer who blamed you as an Enemy. |
| 8 | Promoted to Engineer/Gunner rank 5 |
| 8 | Is now a Chief Petty Officer |
| 9 | Continued as Engineer/Gunner at age 50 |
| 9 | Vessel participates in a diplomatic mission. |
| 9 | Gain a contact. |
| 10 | Aging Crisis. Owe 40,000 for medical bills. |