| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Navy (Line/Crew) with the new title Crewman. |
| 1 |
19 |
Commanding officer takes an interest in Bart Johnson's career. |
| 1 |
22 |
Promoted to Navy (Line/Crew) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Continued as Navy (Line/Crew). |
| 2 |
24 |
Commanding officer takes an interest in Bart Johnson's career. |
| 2 |
26 |
Promoted to Navy (Line/Crew) rank 2 with the new title Petty Officer, 3rd class. |
| 3 |
26 |
Continued as Navy (Line/Crew). |
| 3 |
27 |
Abuse Bart Johnson's position for profit. |
| 3 |
30 |
Promoted to Navy (Line/Crew) rank 3 with the new title Petty Officer, 2nd class. |
| 4 |
30 |
Continued as Navy (Line/Crew). |
| 4 |
31 |
Vessel participates in a notable military engagement. |
| 4 |
34 |
Promoted to Navy (Line/Crew) rank 4 with the new title Petty Officer, 1st class. |