| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Navy (Flight) with the new title Crewman. |
| 1 |
20 |
Vessel participates in a notable military engagement. |
| 1 |
22 |
Promoted to Navy (Flight) rank 1 with the new title Able Spacehand. |
| 2 |
22 |
Continued as Navy (Flight). |
| 2 |
24 |
Advanced training in a specialist field. |
| 2 |
26 |
Promoted to Navy (Flight) rank 2 with the new title Petty Officer, 3rd class. |
| 3 |
26 |
Attempted to change assignments. |
| 3 |
26 |
Switched to Navy (Line/Crew) with previous rank. |
| 3 |
27 |
Advanced training in a specialist field. |
| 4 |
30 |
Attempted to change assignments. |
| 4 |
30 |
Failed to qualify for Flight (Navy). |
| 4 |
30 |
Continued as Navy (Line/Crew). |
| 4 |
34 |
Special assignment or duty on board ship. |