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VA261: Ariane 5 timelapse
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By European Space Agency
Video: 01:00:00 Watch the replay of the media briefing on Ariane 6 during which ESA Director General Josef Aschbacher outlines the progress achieved after the successful hot firing test on 23 November 2023 at Europe’s Spaceport in French Guiana, as well as the upcoming steps in the Ariane 6 development test campaign, including ESA, CNES and ArianeGroup targeting the first launch of Ariane 6 between mid June and end of July 2024. Participants also includes Martin Sion, CEO, ArianeGroup ; Philippe Baptiste, President of CNES and Stéphane Israël, CEO, Arianespace.
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By European Space Agency
Video: 00:02:16 Scenes from the combined hot-fire test held for Ariane 6 on 23 November 2023. Teams on the ground went through a complete launch countdown followed by a seven-minute full firing of the core stage’s engine, as it would fire on a launch into space.
This video shows the Ariane 6 mobile building opening its doors, the building rolling away to leave the Ariane 6 test model on the launch pad and the seven minutes of firing.
On the launch pad in Kourou, French Guiana, the Ariane 6 test model fired of its Vulcain 2.1 main stage engine for seven minutes. This engine, on a real flight, would work with the boosters to propel the 62-m-tall rocket off Earth and into space. For the test the rocket stayed firmly on the ground, but its engine burnt through 150 000 kg of supercooled liquid oxygen and hydrogen fuel for the duration of a real flight. Not only was the core stage being tested, but all aspects of the launch pad and operations, too, from the delicate procedure of fuelling both the main engine and the orbital stage stacked above it to testing the thermal effects of a launch on mechanical and electrical components.
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By European Space Agency
Video: 00:01:25 Cinq, quatre, trois, deux, un. Allumage Vulcain! This is the moment Ariane 6’s main engine was sparked into life, and the entire main stage of the new rocket and the many parts of the launch pad in Kourou, French Guiana, practised for the full duration of a launch. Of course, as planned, the test model did not leave the ground.
Without its boosters, instead of piercing the clouds Ariane 6’ created its own on Earth: a clean byproduct of the Vulcain 2.1 engine’s oxygen and hydrogen propellants, which came together to send out impressive swirls of H2O.
After the almost 150 tonnes of propellant was burnt through and the clouds dispersed, the curtains closed on the successful rehearsal. The data from thousands of monitors around the rocket will be crunched in the coming weeks to learn all that’s needed for Ariane’s next, real, flight.
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By European Space Agency
Video: 00:08:32 On 23 November 2023, in preparation for its first flight, Ariane 6 went through its biggest test to date: a full-scale rehearsal that meant complex fuelling, a launch countdown and ignition of the core stage Vulcain 2.1 engine, followed by over seven minutes of engine burn that covered the entire core stage flight phase, just as would happen during a real launch into space.
The engine roared into action after a slight anomaly meant there was a suspenseful pause to the automated sequence, before the countdown was reset and began to tick again. The live feed continued until just after core stage operations were complete and the engine had burnt through all of its propellant.
For this rehearsal the boosters were not ignited, so the Ariane 6 test model stayed firmly on the launch pad at Europe’s Spaceport in French Guiana. This was the longest ‘full-stack’ run performed to date for the rocket’s liquid propulsion module with a Vulcain 2.1 engine.
The Vulcain 2.1 engine burnt through almost 150 tonnes of propellant supplied from the Ariane 6 core stage tanks – liquid oxygen and liquid hydrogen – supercooled to temperatures below -250°C.
With thousands of monitors situated around the launchpad, the data from this rehearsal will be analysed meticulously and used for Ariane 6’s next and first real flight.
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