M1 (missile)

The M1 MSBS was the first French submarine-launched ballistic missile.

M1 MSBS
Prototype of a re-entry vehicle of an M1 missile in 1969.
Type	SLBM
Place of origin	France
Service history
In service	1971-75
Production history
Manufacturer	Aérospatiale
Specifications
Mass	20,005 kg (44,103 lb)
Length	10.67 m (35.0 ft)
Diameter	1.49 m (4 ft 11 in)
Blast yield	1 × 1,000 kt (4,200 TJ)
Engine	Two-stage solid-fuel rocket 440 kN (99,000 lbf)
Operational range	3,000 km (1,900 mi)
Guidance system	Inertial
Launch platform	Redoutable-class SNLEs (SSBNs)

Overview

In French, MSBS is the abbreviation for Mer-Sol Balistique Stratégique, or Sea-Ground Strategic Ballistic Missile. It has two stages. It was deployed on the Redoutable-class SNLEs (Sous-marin Nucléaire Lanceur d'Engins) (Device-launching Nuclear Submarine) or SSBNs from 1971 to 1975. It was replaced by the M2 MSBS in 1974–75.^[1]