Operation Flower Festival
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| Operation Flower Festival Great Blossom-1 | |
|---|---|
 Mushroom cloud forming during the test | |
| Information | |
| Country |  Janpia |
| Test site | Evakadosche Island |
| Period | April 16, 1964 |
| Number of tests | 1 |
| Test type | Atmospheric |
| Device type | Fission |
| Max. yield | 22 Kilotons |
Operation Flower Festival was the codename of the first nuclear test conducted by Janpia on April 16, 1964, at the island of Evakadosche. The bomb used on the test was the Great Blossom-1, a 22 kiloton nuclear fission device that was developed and enriched by gaseous diffusion plants by the Union Research Bureau 593. The bomb was fitted for the HB-25 Bomber, which was utilized to drop the bomb over the test island.