Originally Posted by
FastDEW
The 707 roll was accomplished under all positive G. It was a slow and wide roll in order to keep positive G on the wings (read to keep them from breaking from negative G loads) and the fuel, etc all going the right way.
Here's an account of that roll, by the pilot who did it:
VIDEO: Boeing 707 Barrel Roll by Test Pilot Tex Johnson | AirlineReporter.com - seattlepi.com