A back of the envelope scribble says a smooth sinusoidal quatercycle
from 0 to 20 degrees bank if done in something like a half a second
would make a px sitting about 20 feet from the centerline experience a
third of a g max. I think a half second is doable -- but very
unlikely.

Sounds like mountains and molehills, or, more likely, I really don't
remember how to scribble meaningful stuff on the back of an envelope.