Once unlocked the tail is not held in place by the pneumatic system, but by aerodynamic pressure on the tail??
- I am totally confused by what we know so far of the tail 'feathering' system, but I think we must assume the tail movement is 'powered' somehow, and I can see significant aerodynamic forces moving the tail to 'feather', but I cannot see how the reverse will happen - unless the 're-entry' is inverted.