Multirod fluid actuator arrangement

A control surface multirod actuator arrangement comprising:

• a first and a second multirod actuator configured to move a first set of piston rods;
• a third multirod actuator configured to move a second set of piston rods;
• wherein each piston rod of said first and second set of piston rods being configured to be individually engaged or disengaged by first, second or third set of engagement and disengagement devices;
• a control unit configured to control the motion of the first set of piston rods in a first motion mode and to control the motion of the second set of piston rods in a loitering mode;
• the clamping of at least one piston rod of the first set of piston rods in parked position and the clamping of at least one piston rod of the second set of piston rods in parked position being said loitering mode.

A non-transitory computer storage medium storing computer-executable instruction adapted for controlling the motion of a control surface multirod actuator system, comprising;

• a first and a second multirod actuator configured to move or clamp around a first set of piston rods;
• a third multirod actuator configured to move or clamp around a second set of piston rods;
• a control unit configured to control the motion of the first set of piston rods in a first motion mode and to control the motion of the second set of piston rods in a second motion mode;
• wherein said stored computer-executable instructions readable code causing the control unit to perform a method comprising:
• moving at least one piston rod of the first set of piston rods and/or clamping in parked position at least one piston rod of the second set of piston rods;
• clamping in parked position at least one piston rod of the first set of piston rods and clamping in parked position at least one piston rod of the second set of piston rods;
• and
• clamping in parked position at least one piston rod of the first set of piston rods and moving at least one piston rod of the second set of piston rods.