STS-104, Space Shuttle Atlantis launched on July 12, 2001. Backdropped against a blue and white Earth the Quest airlock is in the process of being installed onto the starboard side of Unity Node 1 of the ISS. Astronaut Helms used controls onboard the station to maneuver the Airlock into place with the Canadarm2 or Space Station Remote Manipulator System (SSRMS). The airlock will be the primary path for Space Station spacewalk entry and departure for U.S. spacesuits, and will also support the Russian Orlan spacesuit for EVA activity. The Joint Airlock is 20 feet long, 13 feet in diameter and weighs 6.5 short tons. The ISS-airlock has two main components: a crew airlock and an equipment airlock for storing EVA gear and EVA preflight preps. STS-104 also carried a spacelab pallet with four High Pressure Gas Assembly containers that were attached to the exterior of the airlock.