Operation Hardtack I Tests Hardtack I Tests

| Name_ | Location_ | Elevation_Height | Delivery | Purpose | Yield |
|---|---|---|---|---|---|
| Pinon (cancelled) | Pacific Ocean | 0 + 0 | Atmospheric | Weapon effect | unknown yield |
| Teak | Johnston Island | N/A + kilometres (mi) | High altitude rocket (30-80km) | Weapon effect | 3.8 Mt |
| Quince | Enewetak, Runit (Yvonne) | metres (ft) + metres (ft) | Dry surface | Weapons development | no yield |
| Orange | Johnston Island | N/A + kilometres (mi) | High altitude rocket (30-80km) | Weapon effect | 3.8 Mt |
| Fig | Enewetak, Runit (Yvonne) | metres (ft) + metres (ft) | Dry surface | Weapons development | 20 t |