Core Stage Pathfinder Departs Kennedy

Backdropped by clouds lit by sunrise, NASA’s Pegasus barge departs the Launch Complex 39 turn basin wharf.
Backdropped by clouds lit with sunrise, NASA’s Pegasus barge departs the Launch Complex 39 turn basin wharf. Photo credit: Cory Huston

NASA’s Pegasus barge, with the 212-foot-long Space Launch System (SLS) rocket core stage pathfinder secured inside, departed the Launch Complex 39 turn basin wharf at NASA’s Kennedy Space Center in Florida on Oct. 31, 2019.

The 212-foot-long Space Launch System (SLS) rocket core stage pathfinder is moved inside the Pegasus barge on Oct. 28, 2019, in preparation for departure.
The 212-foot-long Space Launch System (SLS) rocket core stage pathfinder is moved inside the Pegasus barge on Oct. 28, 2019, in preparation for departure. Photo credit: NASA/Kim Shiflett

The pathfinder is a full-scale mock-up of the rocket’s core stage. It was used by the Exploration Ground Systems Program and its contractor, Jacobs, to practice offloading, moving and stacking maneuvers inside the Vehicle Assembly Building using ground support equipment to train employees and certify all the equipment works properly. The pathfinder was at Kennedy for about a month.

The barge is carrying the pathfinder back to the agency’s Michoud Assembly Facility in Louisiana.