There is one spoiler that isn't totally deployed. Look:
And also on this other picture:
Why aren't they deployed at the same angle?
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Roll control is provided by 2 flaperons, 2 ailerons, and 14 spoilers.
Spoiler panels 4 and 11 are controlled mechanically rather than electrically. They are driven directly from control wheel deflections via a control cable. In case of compete electrical loss, limited roll control is available until the electrical system is restored. This probably explains the difference in rigging.
Spoiler panels 4 and 11 are also used as speedbrakes, both in the air and on the ground. The speedbrake function for this spoiler pair only has two positions: stowed and fully extended. The speedbrake commands for spoilers 4 and 11 are electrical in nature, with an ACE (actuator control electronics) giving an extend or retract command to a solenoid operated valve in each of the actuators.
Once that spoiler pair has been deployed by a speedbrake command, there is no control wheel speedbrake command mixing, as there is on all the other fly-by-wire spoiler surfaces.
In roll control, all spoilers except for 4 and 11, are fly-by-wire. Spoilers 4 and 11 receive mechanical signals for roll control. For spoilers 4 and 11, a cable system connects the control wheels to the spoiler PCUs. Cable movement supplies a mechanical input to the PCUs which move the spoilers. The movement of the PCU housing supplies mechanical position feedback.
In speedbrake control, all spoilers are fly-by-wire, including spoilers 4 and 11. For spoilers 4 and 11, speedbrake control is only available in normal mode. When the pilot moves the speedbrake lever more than 54 degrees, the PFC commands the ACE to send an ON/ OFF electrical signal to the two spoiler PCUs.