[snopercod]

The first point is that the RSB was not even effective until well after the Columbia disintegrated.

The other points are the the normal sequencing of the RCS thrusters. Is all that beyond you?

[Moonman62]

The first point is that the RSB was not even effective until well after the Columbia disintegrated.

The other points are the the normal sequencing of the RCS thrusters. Is all that beyond you?

According to your own post, the yaw jets would have been active down to mach 3.5, well below the speed of the orbiter when it broke up. Can you please explain what you mean by RSB, and the normal sequencing of the RCS thrusters?