#1562..Ex-UPY 1468 MP15N/MP15AC, nee SP 2740 9/75 #1555...Ex-UPY 1441 MP15N/MP15AC nee SP 2712 8/75. Principal upgrades made by UP included an AR10 traction alternator(replacing the AR6) and a ZTR Nexsys III microprocessor control system. 38 units were rebuilt and reclassified as MP15N's between June 2013 and the end of the program in June 2015. |