Operation Flintlock (nuclear test) Operation Flintlock (nuclear test) United States' Flintlock series tests and detonations

| Name_ | Location_ | Elevation_Height | Delivery | Purpose | Yield |
|---|---|---|---|---|---|
| Plaid 2 | NTS Area U2r | metres (ft) - metres (ft) | Underground shaft | Weapons development | 3.5 kt |
| Rex | NTS Area U20h(e) | metres (ft) - metres (ft) | Underground shaft | Weapons development | 19 kt |
| Red Hot | NTS Area U12g.06 | metres (ft) - metres (ft) | Underground tunnel | Weapon effect | 2 kt |
| Cinnamon - 2 (with Finfoot) | NTS Area U3dm | metres (ft) + 0 | Underground shaft | Safety experiment | less than 20 kt |
| Finfoot - 1 (with Cinnamon) | NTS Area U3du | metres (ft) - metres (ft) | Underground shaft | Weapons development | 5 kt |
| Clymer | NTS Area U9ce | metres (ft) - metres (ft) | Underground shaft | Weapons development | 3 kt |
| Purple | NTS Area U3ds | metres (ft) - metres (ft) | Underground shaft | Weapons development | 7 kt |