MR 31

MR 31
MR 31
Type	Nuclear weapon
Place of origin	France
Service history
In service	1970-1980
Specifications
Blast yield	120 kilotons

Last updated May 10, 2025

The MR 31 was a French nuclear warhead for the S2 medium-range ballistic missile.

The weapon had a yield of 120 kilotonnes of TNT (0.50 PJ) and weighed 700 kilograms (1,500 lb). It was apparently a pure plutonium device and unboosted, and the largest pure plutonium weapon ever built.^[1]

Entering service in August 1970 it was withdrawn from service by June 1980.^[1]

References

1 2 Sublette, Carey (1 May 2001). "France's Nuclear Weapons - Development of the French Arsenal". Nuclear Weapons Archive. Retrieved 26 May 2021.

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[NukeArch-1] 1 2 Sublette, Carey (1 May 2001). "France's Nuclear Weapons - Development of the French Arsenal". Nuclear Weapons Archive. Retrieved 26 May 2021.

[1]

v t e French nuclear armament
Strategic missiles	missile M1 missile M2 missile M20 missile S1 missile S2 missile S3 missile M4 missile M45 missile M5 missile M51
Pre-strategic missiles	Pluton Hadès ASMP ASMP-A ASN4G
Nuclear warheads	AN-11 bomb AN-22 bomb AN-52 bomb MR 31 MR 41 MR 50 CTC AN 51 CTC AN 52 CTC TN 60 TN 61 TN 70 TN 71 TN 75 TN 76 TN 80 TN 81 TN 90 TNA TNO
Related subjects	French nuclear deterrence FAS FOST France and weapons of mass destruction

MR 31

See also

References