senior chef
Senior Member
For the 2nd time in a week, Artemis 1 has been cancelled again due to a hydrogen leak.
The next date is not scheduled for lift-off until OCT, 2022
The next date is not scheduled for lift-off until OCT, 2022
You’re close. There’s a lot more to what goes on behind the scenes now that the rocket and boosters have to go into “stand down” mode. Millions will be spent for the rollback to the assembly building and the launch vehicle (crew capsule) will be removed followed by the engines, etc. Most every part will have to go through a scrubbing and x-rays for damage or defects. It’s almost like starting all over, but this time the erector set does have some sub-assembly completed. Even the fuel ballasts will need to be emptied and scrubbed and within just a few days of launch fresh fuel will need to be filled into the tanks. Just like every big game being played, failure is not an option.Yeah, and I think they should roll that big baby back into
the shop for some preventive maintenance.....imo
There is a dye test that can be performed (DPI). It takes several hours and each component that is attached to another component or weld must be dye-checked or x-rayed. It’s very time consuming and any doubt, even 1% is enough to remove those components and replaced. The problem that I have seen happen is that not all components are easily able to be checked and so sub assemblies must be removed. It really comes down to how much or how far do the engineers want to go to inspect the complete assembly.It seems strange that there isn't some way to check for leaks before they try to fuel this rocket. At a bare minimum, it would seem logical to fill the vessel with compressed air, and see if that holds for several hours.