Most are trying to describe the same thing with confused terminology and reasoning. The resultant of 2 identical colinear forces is double the individual force.
However, the AS350 dual hydraulic system does not produce twice the force of the single system because they operate at different pressures (and presumably with different piston sizes).
The above video simply states that the two independent systems don’t result in double pressure.
The AS350 dual system is not a traditional series nor parallel hydraulic system. Customarily, a series hydraulic system is where the hydraulic outflow of the first piston is fed as input to the second piston. And typically, a parallel system has a single pump feeding separate pistons. The AS350 is a hybrid parallel system utilizing two pumps (operating at the same pressure) that feed separate pistons that happen to be connected (colinear) to one another via the same shaft.
Grain of salt: The 2 cylinders of the dual system are not identical due to the construction of the actuator which shares the same shaft. The upper cylinder incorporates a liner which serves to reduce that system’s piston area to be comparable with the lower system.
Last edited by JimEli; 2nd December 2023 at 21:12.
Reason: spelling/clarified series system description