Yup, as an engineer the "nuts and bolts" of all this stuff is the really hard part. The stresses, forces, environment etc that these machines face mean that it

Yup, as an engineer the "nuts and bolts" of all this stuff is the really hard part. The stresses, forces, environment etc that these machines face mean that it is always impressive the don't blow up. And its silly talk to say that the ESA shouldn't have its own rocket programmes.