Piston pumps. Piston pumps can have the pistons arranged in a radial. or axial fashion. Radial types tend to be specialized. for applications requiring very high power, while. axial piston pumps are available in a wide range of. displacements and pressure capabilities that make. them suitable for many mobile and industrial tasks.
A New Hope was released on January 31, 1997, followed by The Empire Strikes Back on February 21, 1997, and Return of the Jedi on March 7, 1997, but due to the box office success of the first two (mostly A New Hope, which grossed the most of the three re-releases) it was pushed to a week later on March 14.
The Rebel Alliance was first featured in the 1977 film Star Wars as the main protagonists as well as its sequels: The Empire Strikes Back (1980) and Return of the Jedi (1983).