// Workers AI · dad joke modeIs MR 41 a good code? No, it's a little "off-by-one".

The MR 41 is a French-built nuclear warhead to be launched with the M1 and M2 missiles in Redoutable class ballistic missile submarines.

It had a yield of 500 kilotons and was boosted fission warhead based on highly enriched uranium combined with deuterium and tritium.^[1]

Entering service in 1972 it was withdrawn from service by the end of 1979, being replaced by TN 60 thermonuclear warheads.^[1]

References

1 2 Sublette, Carey (8 July 2025). "France's Nuclear Weapons - Development of the French Arsenal". Nuclear Weapons Archive. Retrieved 26 May 2021.

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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