| Term |
Age |
History |
|---|
| 1 |
18 |
Became a Navy (Flight) with the new title Crewman. |
| 1 |
20 |
Oswald Harrison is blamed for an accident that causes the death of several crew members. Oswald Harrison's guilt drives Oswald Harrison to excel. |
| 2 |
20 |
Failed to qualify for Courier (Scout). |
| 2 |
20 |
Submitted to the draft. |
| 2 |
20 |
Continued as Navy (Flight). |
| 2 |
24 |
Special assignment or duty on board ship. |
| 3 |
24 |
Attempted to change assignments. |
| 3 |
24 |
Failed to qualify for Line/Crew (Navy). |
| 3 |
24 |
Continued as Navy (Flight). |
| 3 |
27 |
Advanced training in a specialist field. |
| 3 |
28 |
Promoted to Navy (Flight) rank 1 with the new title Able Spacehand. |