US Marine Corps
US Marine Corps Commandos with unknown Bureau Number and history:
- Curtiss R5C-1 Commando: (41-24669), (41-24670), (41-24671), (41-24734), (41-24738), (41-24759), (41-24760), (41-24761), (41-24764), (41-24765), (42-3618), (42-3621), (42-3622), (42-3667)