Rebuilds
One Burlington Northern Railroad SDP45 (photo of BN 6599) was retrofitted with an articulated four-axle truck by EMD, converting it to an A1A-B+B wheel arrangement. The middle traction motor in the lead truck was removed and placed in the rear truck. The rear truck, called the HT-BB, for High Traction B+B arrangement, was tested successfully (closeup of HT-BB truck) but has not been produced for sale to date (February 2008). This testing was not related to the development of the HTCR three-axle radial truck first seen under SD60 EMD 3 and SD60MACs, and made standard on the early SD70 series.
Southern Pacific Railroad 8691-8696 were SD40M-2 rebuilds done by Morrison-Knudsen. They were ex-EL 36??, 3668, 3666, 3665, 3662 and 3659. It is this group that most surviving SDP45s belong to.
Erie Lackawanna 3637 was wrecked and rebuilt into a slug.
Read more about this topic: EMD SDP45
Famous quotes containing the word rebuilds:
“Really, there is no infidelity, nowadays, so great as that which prays, and keeps the Sabbath, and rebuilds the churches. The sealer of the South Pacific preaches a truer doctrine.”
—Henry David Thoreau (1817–1862)