Wouldn't a common dome tank be more mass efficient especially for an upper stage or is it too difficult with hydrolox? And what about solar radiation, I assume the stage would be insulated and painted white and you showed it like this just to emphasize the carbon fiber? Thanks
One of the ambitious projects for #Ariane6 we're aiming for in 2025 
Why do we use composites for the cryogenic reservoirs? Check out this video that will explain everything!pic.twitter.com/ju3TlPviKU
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Hydrolox common bulkheads are really easy, they've been done since the 60s (Centaur). Practically every modern rocket uses them (including Ariane 5 on both stages). So this is a pretty weird choice.
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@TenCate_Adv_Com can help with this challenging application! #composites#launch#cryogenicsThanks. Twitter will use this to make your timeline better. UndoUndo
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