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{{Short description|Thermonuclear warhead}}
{{for|the state highway in Tennessee|Tennessee State Route 75}}{{More citations needed|date=November 2025}}
The '''TN 75''' is a [[France|French]]-built 150kt [[fusion bomb|thermonuclear warhead]] used on France's [[M45 SLBM|M45]] and  [[M51 (missile)|M51]] submarine-launched ballistic missiles, carried by the last of the  [[Redoutable-class submarine (1967)|''Redoutable'' class]] submarines, S616 ''[[L'Inflexible (S 615)|Inflexible]]'', and by the [[Le Triomphant class submarine|''Triomphant'' class submarine]]s. The French Navy has 290 TN-75 warheads. It is a miniaturized, hardened<ref>{{cite journal |title=French and British Nuclear Forces, 1999 |journal=Bulletin of the Atomic Scientists |date=July 1999 |volume=55 |issue=4 |pages=77–79 |doi=10.1080/00963402.1999.11460361 |url=https://doi.org/10.1080/00963402.1999.11460361 |access-date=8 November 2025}}</ref> and stealthy successor to the [[TN 71]].

Development began in 1987 and developmental testing of the warhead ended in 1991, but French president [[Jacques Chirac]] asserted in June 1995 (50 years after the [[Atomic bombings of Hiroshima and Nagasaki]]) that a full yield proof [[nuclear testing|test]] was needed prior to deployment, causing an international outcry. Its first full-yield test was probably the 110 kt detonation on 1 October 1995 at [[Fangataufa]].

It will be succeeded by the TNO, the ''[[Tête nucléaire océanique]]''.<ref>{{cite news |last1=Vavasseur |first1=Xavier |title=French Navy SSBN ‘Le Terrible’ Tests M51 SLBM in Operational Conditions |url=https://www.navalnews.com/naval-news/2023/04/french-navy-ssbn-le-terrible-tests-m51-slbm-in-operational-conditions/ |access-date=8 November 2025 |work=Naval News |date=24 April 2023}}</ref>

==References==
{{reflist}}

==See also==
* [[Force de frappe]]
* [[Strategic Oceanic Force]]
* [[List_of_nuclear_tests#France|Nuclear tests by France]]

{{French nuclear missiles}}

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[[Category:Nuclear warheads of France]]
[[Category:Military equipment introduced in the 1990s]]
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