"B-28 FI 1.45-megaton-range nuclear bombs" . "B28FI nuclear bomb" . "B28 (Mod 2, 70 kiloton yield)" . "B28FI" . "Mk28" . "Mark 28 Y1" . . "B-28 weapons" . . . . "W-28 thermonuclear warhead" . . "Mk 28" . . "B28FI Mod 2 Y1" . . "W28 warhead" . . "Mark 28 thermonuclear warheads" . . "Mk 28 warhead" . . . "US Mk-28 nuclear bomb" . . "Mk 28 bomb" . . . . "B28FI thermonuclear bombs" . . "TX-28C" . . "B28 bomb" . "Mk 38" . . . "W28 Class D" . "nuclear bombs" . . "Mark 28 nuclear bomb" . . "B28-0" . "TX-28S" . "B28" . . "W28 Class D nuclear warhead" . . "Mark 28 nuclear bombs" . . "B28 nuclear bomb" . . "MK28" . "B28EX" . "Mark 28" . . "B28 nuclear bomb" . "B28FI Mod 2 Y1 thermonuclear bombs" . . . "W28" . "Mk.28 nuclear bombs" . . "Mark 28 / B-28 nuclear bomb" .