xxx: Can civilian aircraft (Boeing, Airbus, Superjet) perform figures of superior piloting?
YYY: Once you can

In reality, it can be without problems. On the first open demonstration flight of the Boeing-707, the pilot performed a barrel. and twice. Causing panic in the management of the company, which, like the writers above, was unaware that manoeuvres with a load of 1 g do not create dangerous loads.