M51 SLBM | |
---|---|
Type | SLBM |
Service history | |
In service | 27 September 2010 |
Production history | |
Designer | ArianeGroup |
Manufacturer | ArianeGroup |
Specifications | |
Mass | 52,000 kg |
Length | 12.0 m |
Diameter | 2.3 m |
Warhead | M51.1 = 6 to 10 TN 75 MIRV 110 kiloton (kt) (420 TJ), with penetration aids. M51.2 (2015) = using the new Tête nucléaire océanique 100 kt / CEP 150–200 m[1][2] M51.2 (2015) = using the new TNO BC 300 kt / CEP 150–200 m[3] |
Engine | three-stage solid-fuel rocket (ammonium perchlorate composite propellant) |
Operational range | Estimated 8,000–10,000 km[4][5] (the range is classified information) |
Maximum speed | Mach 25[4][5] |
Guidance system | Astro-inertial guidance. Galileo system is planned. |
Launch platform |
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The M51 SLBM is a French submarine-launched ballistic missile, built by ArianeGroup, and deployed with the French Navy. Designed to replace the M45 SLBM (in French terminology the MSBS – Mer-Sol-Balistique-Stratégique "Sea-ground-Strategic ballistic"), it was first deployed in 2010.
Each missile carries six to ten independently targetable TN 75 thermonuclear warheads.
The three-stage engine of the M51 is directly derived from the solid propellant boosters of Ariane 5.[6] Like other blunt-nosed SLBM examples, such as the Trident D5, the M51 uses an extensible aerospike in the nose.
The missiles are a compromise over the M5 SLBM design, which was to have a range of 11,000 km (6,800 mi) and carry ten new-generation tête nucléaire océanique' ("oceanic nuclear warhead") MIRVs.[7] Design work on the M5 started in the late 1980s by Aérospatiale,[8] before the programme was renamed the M51 in 1996, when development costs decreased by 20 percent.[9] The M51 entered service in 2010.[10]
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