The bucket of sunshine that was usable could be deployed by S-3's but I don't recall whether or not our P-3's had it in their cert: probably did. Memory foggy regarding the halcyon days of playing tag with Ivan.
There was at least one rotary wing that could carry same bucket of sunshine, but there was some question about whether it was fast enough to get out of the blast radius once it delivered.
This whole lash up reminded me of that tactical nuke Mortar the Army developed back in the 50's.