The TN 71 is a French-built

thermonuclear warhead A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a second-generation nuclear weapon design. Its greater sophistication affords it vastly greater destructive power than first-generation nuclear bombs, a more compact size, a low ...

which was used on submarine-launched ballistic missiles in ''Redoutable'' class ballistic missile submarines. It has a yield of 150 kt. Entering service in 1985 on M4-B ballistic missiles, it was replaced at the end of October 1996 by the

TN 75 The TN 75 is a French-built 150kt thermonuclear warhead used on France's M45 and M51 submarine-launched ballistic missiles, carried by the last of the ''Redoutable'' class submarines, S616 '' Inflexible'', and by the ''Triomphant'' class sub ...

, which equips M45 missiles for France's ''Triomphant'' class of "new generation" ballistic missile submarines (SNLE-NG). There were 288 operational TN 71 warheads before its replacement in 1996, and 96 in 2001, but none were remaining by 2004, at which time it was withdrawn from service.

See also