Morgans schrieb:

Someone correct me if I'm wrong, but isn't an aileron roll a negative 1 G
maneuver? You spin on an axis, through the plane's center of gravity. For
an instant, the pilot is upside down, hanging by the belt.

No. This is called a slow roll or simply a roll.

The 707 roll was indeed a barrel roll. Check it out on Jay's webpage.

Hardly an authoritative source.

Stefan