Looking at some videos and photos of F/A-18 Hornets and Super Hornets taking off from carriers and from airfields, I recognised that the left rudder is pointing right, and the right rudder pointing left.

Here's a picture:

• Why is that? Are there any aerodynamic advantages?
• Is it also used as an airbrake to slow the plane down at landings?
• At which point of the flights are the rudders in this position and why? (Takeoff, landing, cruising, or both?)
• Does the pilot steer them or is the work done by a computer?