Multiple choice

Which structure was connected to the Orbiters on the launch pads and allowed astronauts entry into the Orbiters?

  1. Launch pad

  2. Crawlerway

  3. Rotating Service Structure (RSS)

  4. Orbiter Access Arm

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Orbiter Access Arm was the extendable bridge that allowed crew members to walk from the Fixed Service Structure into the Shuttle's crew hatch.