This thread started with a discussion of roll rate for a 757. Various opinions were expressed. Eventually it became clear that roll rate was not the right question for the case at hand. Roll rate describes a continuous process. What we needed to know was the initial behaviour of the plane when a full control input was applied, taking into account the inertia of the heavy plane. It seemed this would be hard to discover.
The calculation at the beginning of this page showed that a bank of 77 degrees would be required if the plane passed north of the Citgo service station. That calculation was based on an assumption that the roll from left to right could be completed in 0.5 seconds.
The required information is apparently now available from the FDR of UA 93. We see that full application of the control wheel produces only about 30 degrees of roll in the first second.
Can we can conclude from this that the calculation shown at the beginning of this page, that a bank of 77 degrees would be required, with a wing loading between 4 and 5 g, is a gross underestimation? Is so, the plane simply could not have performed the maneuvre required to pass north of the Citgo service station and still arrive in the vicinity of the impact point.