A parachute-retarded LRL device in a MK-36 drop case. This was a test of advanced principles for achieving high-efficiency thermonuclear burn, and successfully confirmed theoretical predictions. It was said to « show the way to a new range of possibilities in high-yield design ». This was the last Christmas Island airdrop, and the third largest test of Operation Dominic. Yield-to-weight ratio was 0.934 kt/kg (but then this was an experiment, not a final weapon configuration).

https://nuclearweaponarchive.org/Usa/Tests/Dominic.html