Operation Hardtack I Tests Hardtack I Tests

| Name_ | Location_ | Elevation_Height | Delivery | Purpose | Yield |
|---|---|---|---|---|---|
| Yucca | Pacific Ocean | 0 + kilometres (mi) | Balloon | Weapon effect | 1.7 kt |
| Cactus | Enewetak, Runit (Yvonne) | metres (ft) + metres (ft) | Dry surface | Weapons development | 18 kt |
| Fir | Bikini, Namu (Charlie) | 0 + metres (ft) | Barge | Weapons development | 1.4 Mt |
| Butternut | Enewetak, Runit (Yvonne) | 0 + metres (ft) | Barge | Weapons development | 81 kt |
| Koa | Enewetak, Teiter (Gene) | metres (ft) + metres (ft) | Dry surface | Weapons development | 1.4 Mt |
| Wahoo | Enewetak, Pokon (Irvin) | 0 - metres (ft) | Underwater | Weapon effect | 9 kt |
| Holly | Enewetak, Runit (Yvonne) | 0 + metres (ft) | Barge | Weapons development | 5.9 kt |