| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Scholar (Field Researcher). |
| 1 |
20 |
Advanced training in a specialist field. |
| 1 |
22 |
Promoted to Scholar (Field Researcher) rank 1. |
| 2 |
22 |
Voluntarily left Field Researcher |
| 2 |
22 |
Became a Navy (Line/Crew) with the new title Crewman. |
| 2 |
24 |
Vessel participates in a diplomatic mission. |
| 3 |
26 |
Continued as Navy (Line/Crew). |
| 3 |
27 |
Moved to a new world. |
| 3 |
30 |
Forced to continue current assignment |
| 3 |
30 |
Promoted to Navy (Line/Crew) rank 1 with the new title Able Spacehand. |
| 4 |
30 |
Continued as Navy (Line/Crew). |
| 4 |
34 |
Special assignment or duty on board ship. |
| 5 |
34 |
Continued as Navy (Line/Crew). |
| 5 |
35 |
Advanced training in a specialist field. |
| 5 |
38 |
Promoted to Navy (Line/Crew) rank 2 with the new title Petty Officer, 3rd class. |