CAPE CANAVERAL, Fla. - NASA locomotive No. 1 pulls locomotive No. 3 out of the Rotation, Processing and Surge Facility, or RPSF, at the Kennedy Space Center in Florida. Inside, an overhead crane was used to lift NASA locomotive No. 2 off of its trucks and moved aside, so locomotive No. 3 could be raised off its trucks and moved into position atop the trucks previously used by locomotive No. 2. The RPSF was built to support work on the solid rocket used motors during the space shuttle era. The facility had never previously been used for another purpose, but is now free to serve other customers. With rails running into the building's high bay and a pair of heavy-lift cranes positioned overhead, the facility's capabilities were a perfect fit for the NASA Railroad's needs. Railroad managers wanted to trade the wheel and axle assemblies, or trucks, of locomotives No. 2 and No. 3. Locomotive No. 3 was painstakingly restored in recent years by the NASA Railroad team, and handles much of th