🚀We are #RocketMakers. Pioneers engineers building the most modular launchers. With Ariane 6, we weave a connection between Europe & space.
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Built to survive Mars. But first, it has to prove it.
ArianeGroup tests its thermal protection with SIMOUN, an artificial furnace powerful enough to recreate Mars's extreme heat. It's also bent, shaken, and checked piece by piece. 🔥
#RocketMakers #Civil #ExoMars
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🚀 Why doesn't Ariane 64 fly straight up?
Because it would waste energy.
A launcher doesn't just need altitude.
It needs the right trajectory. 🧵
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For Ariane 64, every part of the flight profile is designed around the mission's needs:
- payload mass
- target orbit
- launcher configuration
- performance margins
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🚀 Ariane 64 doesn't turn early by accident.
It follows a carefully designed trajectory to use its power efficiently and deliver Europe's most demanding missions.
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600+ companies. 13 European countries. One shared goal: Europe's own access to space.
Ariane 6 isn't just a launcher, it's a continent working together. 🚀🇪🇺
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Norcoat® Liège HPK: ultra-lightweight, built to survive 24 months in deep space and thermal cycling from -110°C to +80°C. ArianeGroup's key material for Rosalind Franklin's thermal protection. 🛡️
💬 How can you be sure it'll survive Martian atmospheric entry?
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🚀 How much external heat can Norcoat® Liège HPK manage during atmospheric entry?
3%
500°C
7%
1,000°C
50%
2,000°C
40%
3,000°C
213 votes • Final results
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✅ 2,000°C.
Norcoat® Liège HPK can withstand external temperatures of up to 2,000°C during atmospheric entry, helping protect spacecraft through some of the most intense phases of their journey.
🚀 What impresses you most about thermal protection systems: the temperatures involved, the materials used, the precision engineering or the mission reliability they enable?
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22,000 km/h. 1,800°C. And yet, it has to hold.
Entering the Martian atmosphere, Rosalind Franklin's capsule will have to brake sharply from 22,000 km/h, and that's where ArianeGroup's thermal protection comes in 🔥
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Surface temp: above 1,800°C. Just centimetres behind: under 100°C.
At 3.80 metres in diameter, this heatshield has no equivalent ever built in Europe.
💬 How do you insulate against heat like that with just 1cm of material?
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Ariane 6 now has its own coins 🪙 Germany and Switzerland have each issued a collector coin featuring our launcher.
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On Ariane 64, 93% of liftoff thrust comes from the P120C solid boosters (87% on Ariane 62). 13.5m tall, 143.6t of solid propellant each, built in France. Solid + liquid combined: 100 Rafale jets' worth of thrust. 🚀
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Diamond. Graphite. Same element, two extremes. 💎
At ArianeGroup, we push carbon into a third form: Xrayon®, a highly insulating carbon fibre we're the only ones to manufacture.
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A rayonne fabric goes into a furnace ~10m long, transformed step by step into carbon fibre. Patience = quality. 🚀
Result: thermal protection for our launchers.
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