Ariane 5 rockets (like the one carrying the JWST) are assembled upright in a hangar, but during the launch (obviously) the hangar is no longer around the rocket. Does the Ariane 5 roll out of the assembly hangar? Or is the hangar moved away from the Ariane 5?

I recently saw a mockup of an Ariane 4 where the hangar got rolled away from the launchpad and the rocket stayed in place. Is this still the case for Ariane 5?


1 Answer 1


The Ariane 5 is moved from the BAF (FR: Bâtiment d’Assemblage Final, EN: Final Assembly Building) to the launch pad:

Ariane 5 moving from BAF

Annotated wide view

There is no encapsulation facility at the launch pad, which is "approximately 2600 m*" from the BAF.

*measuring with google maps gives 2.60 kilometers.



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.