11.05.2021
The Auxiliary Power Unit (APU), at the heart of the versatility of the Ariane 6 upper stage, has completed its qualification campaign, with a total operating time of 137601 seconds over the course of more than 53 tests The APU is a real concentrate of innovations, capable of pressurizing the upper stage tanks, preparing the Vinci engine in-flight reignitions, and providing additional thrust on demand, in orbit The APU will be used for the first time during the hot-fire tests of the first Ariane 6 upper stage, currently under preparation at the DLR site in Lampoldshausen, Germany