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NASA Kennedy Space Center

Crew Access Arm for Space Launch System Arrives at Kennedy

3 Nov 2017, 18:01 UTC
Crew Access Arm for Space Launch System Arrives at Kennedy

Two heavy-lift cranes are used to tilt and lower the Orion crew access arm onto a work stand in a storage location Oct. 17, 2017, at NASA’s Kennedy Space Center in Florida. The access arm was transported from Precision Fabricating and Cleaning in Cocoa, Florida. Photo credit: NASA/Kim Shiflett
When astronauts depart for missions to deep space, they will cross the Crew Access Arm about 300 feet above the ground to board their spacecraft. The access arm was delivered to NASA’s Kennedy Space Center in Florida on Oct. 17, 2017, to install on the mobile launcher in preparation for the first flight of the Space Launch System rocket, or SLS, and the Orion spacecraft.
The SLS will be the largest rocket in the world and will be stacked with Orion inside the historic Vehicle Assembly Building, or VAB, on the mobile launcher and rolled out to the pad prior to launch. The access arm will be one of 11 connection points to the rocket and spacecraft from the tower on the mobile launcher. After technicians install the arm, the mobile launcher will be rolled into the VAB for validation and verification tests.
For the first launch without crew, the access arm will provide a bridge to Orion for personnel and equipment entering the spacecraft during processing and prelaunch integrated testing while in the VAB and at the launch site. The arm is made up of two major components: the truss assembly and the environmental enclosure, or the white room. The arm will provide entry and emergency egress for astronauts and technicians into the Orion spacecraft. On future human missions, astronauts outfitted with newly designed space suits will enter the white room, where they will be assisted by technicians into the spacecraft for launch. The arm will retract before launch, and the other connections will release at liftoff, allowing the rocket and spacecraft to safely clear the launch pad.

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