Redwing - Bikini Atoll, Enewetak Atoll

Operation Redwing
1956 - Enewetak and Bikini Atolls
Redwing was the second U.S. test series devoted primarily to proving thermonuclear designs of actual weapons. While Castle had demonstrated heavy, conservatively designed, first generation weapons, Redwing centered on testing a broad variety of new innovative second generation designs.

The test names are all American Indian tribes. The UCRL devices were names for birds and musical instruments.