At one time, the Rocket Park was
graced with three stand-alone rocket engine displays: An F-1, J-2, and a lunar module descent propulsion
system (DPS) engine.
By 2004, the J-2 had undergone a refurbishment and, while still outdoors, was
in a protected area next
to the building.
By 2005 (when the restoration of the Saturn
V began), the J-2 and DPS engines were removed from the Rocket Park and
shortly thereafter the J-2
and a DPS engines
reappeared in what is now the the main gallery of the "old" museum.
After the Davidson Center opened,
the J-2 and DPS engines found a new home
there. Only the F-1 remains outdoors today.