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US Ally Tests 49-Foot Rocket to Develop Next-Gen Hypersonic Weapons

The flight carried experimental payloads for the future M51.4 missile and restored France’s sovereign suborbital test capability, officials said.

  • On November 4, 2026, France's Directorate General of Armaments launched the SyLEx sounding rocket from Biscarrosse, marking the second successful flight of the sovereign platform designed for M51.4 submarine-launched ballistic missile experiments.
  • ArianeGroup developed the Experiment Launch System to provide a domestic suborbital testing capability, reducing French reliance on foreign launch systems for critical aerospace and military research.
  • The November 4 mission utilized a single-stage configuration to reach suborbital altitudes, carrying payloads that test technologies essential for the M51.4 program, which aims to improve the range and accuracy of France's sea-based nuclear deterrent.
  • French Minister of the Armed Forces and Veterans Catherine Vautrin announced the launch, confirming the mission enabled experiments essential to the M51.4 while supporting future hypersonic demonstrators and civilian research applications.
  • ArianeGroup plans to fly a two-stage version of SyLEx by 2027, as the M51.4 missile system prepares to enter service in the 2030s aboard the country's ballistic missile submarines.
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The Directorate General of Armaments (DGA) carried out on the night of November 3 to 4, 2026, a shot at an altitude of more than 100 kilometres with the SyLEx sounding rocket. This successful launch made it possible to pass a milestone...

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The shooting was carried out from the Biscarrosse site, in the Landes, on the night of Tuesday 3 to Wednesday 4 November 2026. It is intended to develop a nuclear missile.

·Rennes, France
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The SyLEX research rocket developed by the Ariane Group was tested by specialists from the General Directorate for Armaments at the Biscarrosse test site in the Nouvelle-Aquitaine region. The goal was to test new technologies for France's nuclear deterrent system and hypersonic weapons in the upper atmosphere. Among other things, the study examined materials used during atmospheric re-entry and avionics components. The single-stage rocket measur…

Center

On the night of November 3 to 4, the DGA launched the SyLEx sounding rocket from Biscarrosse in the Landes. This second shot in eleven months is used to test technologies for the M51.4, future missile of deterrence...

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20 Minutes broke the news in Levallois-Perret, France on Wednesday, November 4, 2026.
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