| Term |
Age |
History |
|---|
| 1 |
18 |
Failed to qualify for Enforcer (Rogue). |
| 1 |
18 |
Submitted to the draft. |
| 1 |
18 |
Became a Navy (Flight) with the new title Crewman. |
| 1 |
20 |
Vessel participates in a diplomatic mission. |
| 1 |
22 |
Forced to continue current assignment |
| 1 |
22 |
Promoted to Navy (Flight) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Continued as Navy (Flight). |
| 2 |
23 |
Advanced training in a specialist field. |
| 2 |
26 |
Promoted to Navy (Flight) rank 2 with the new title Petty Officer, 3rd class. |
| 3 |
26 |
Continued as Navy (Flight). |
| 3 |
27 |
Vessel participates in a notable military engagement. |
| 3 |
30 |
Promoted to Navy (Flight) rank 3 with the new title Petty Officer, 2nd class. |
| 4 |
30 |
Continued as Navy (Flight). |
| 4 |
33 |
Special assignment or duty on board ship. |
| 4 |
34 |
Promoted to Navy (Flight) rank 4 with the new title Petty Officer, 1st class. |
| 5 |
34 |
Continued as Navy (Flight). |
| 5 |
35 |
Birth or Death involving a family member or close friend. |
| 5 |
38 |
Promoted to Navy (Flight) rank 5 with the new title Chief Petty Officer. |