Abstract: A system for providing impact absorption on an interior surface of an aircraft performing parabolic flight maneuvers including: (1) a liner layer having a first side and an opposing second side; (2) a first compression deflection padding layer having a first side, adhered to the second side of the liner layer, and an opposing second side; (3) a second compression deflection padding layer having a first side, adhered to the second side of the first compression deflection padding layer, and an opposing second side; and (4) a flooring layer having a first side, adhered to the second side of the second compression deflection padding layer, and an opposing second side.

Abstract: A hydraulic system for use during reduced gravity flight including: (1) a reservoir; (2) a hydraulic device; (3) a supply line providing fluid communication between the reservoir and the hydraulic device; (4) a return line providing fluid communication between the hydraulic device and the reservoir; (5) a supply valve located on the supply line between the reservoir and the hydraulic device and selectively configurable in an open or closed position; and (6) a return valve located on the return line between the reservoir and the hydraulic device and selectively configurable in an open or closed position; and (7) wherein the supply valve is adapted to prevent fluid communication between the reservoir and the hydraulic device when in the supply valve closed position; and (8) wherein the return valve is adapted to prevent fluid communication between the reservoir and the hydraulic device when in the return valve closed position.