SD40T-2 Top view
As of December 1991
This top view of an unidentified tunnel motor was taken in December 1991. It's the trailing unit on the swing helper of a unit coal train. Judging by the horns, it's either from the group 5398 - 5413, or the Nathan horn has been replaced (which seems to have happened a few times). There's a bit of motion blur on the near end, but most details are discernable despite that.
Rio Grande's SD40T-2s came in several groups, as shown in this table.
|Number Range||Date Purchased||Comments|
|5341 - 5355||Oct 1974||"Short" (81-inch) nose. (All SD40T-2s were delivered in the billboard "Rio Grande" scheme.)|
|5356 - 5366||July 1975||"Short" nose|
|5367 - 5373||Aug 1975||"Short" nose|
|5374 - 5385||Jan 1977||"Long" (88-inch) nose|
|5386 - 5397||Aug 1978||"Long" nose. Low-nose light mounted in external box.|
|5398 - 5413||Mar 1980||"Long" nose. Leslie horns.|
Specific information for individual units may be found on the Rio Grande Modeling & Historical Society's SD40T-2 page.
(1) Class lights on rear corners.
(2) Radiator intake grilles. From ground level, one may see through the other side. The fans are mounted internally above this compartment, forcing air upward through--
(3) -- the radiator grilles.
(4) Grab iron above radiator on left side.
(5) Traction motor blower duct.
(6) PTC control cabinet.
(7) Leslie P3 horn. The bells are larger and longer than the Nathan version.
(8) Antennae: Sinclair, mounted just to left of centerline, and small whip antenna to the right.
(9) Dynamic brake fans.
(10) Engine room roof vent.
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© 2004, James R. Griffin. All rights reserved.