Spec # Model # Notes
------ ------- ---------------------------------------------------------------
DL500 FPD3 "World Locomotive" (244) Standard Co-Co Wheel Arrangement
DL500 FP3 "World Locomotive" (244) Optional Bo-Bo Wheel Arrangement
DL500 FPC3 "World Locomotive" (244) Optional A1A-A1A Wheel Arrangement
DL500A FPD3 "World Locomotive" (244) Standard Co-Co Wheel Arrangement
DL500A FP3 "World Locomotive" (244) Optional Bo-Bo Wheel Arrangement
DL500A FPC3 "World Locomotive" (244) Optional A1A-A1A Wheel Arrangement
DL500B FPD6 "World Locomotive" (251B) Standard Co-Co Wheel Arrangement
DL500B FP6 "World Locomotive" (251B) Optional Bo-Bo Wheel Arrangement
DL500B FPC6 "World Locomotive" (251B) Optional A1A-A1A Wheel Arrangement
DL500B1 FD8 "World Locomotive" (251B)
DL500C FPD7 "World Locomotive" (251B) Standard Co-Co Wheel Arrangement
DL500C FP7 "World Locomotive" (251B) Optional Bo-Bo Wheel Arrangement
DL500C FPC7 "World Locomotive" (251B) Optional A1A-A1A Wheel Arrangement
DL500CI FPD7 "World Locomotive" (251B) Std FPD7 modified for India
DL500CP FPD7 "World Locomotive" (251B) Std FPD7 modified for Pakistan
DL500D FD9 "World Locomotive" (251B)
DL500G FPD9 "World Locomotive" (251B) Standard Co-Co Wheel Arrangement,
with double-ended carbody; built by A.E Goodwin (Australia).
Not to be confused with subsequent "DL500G II" double-enders
built by Goodwin successor, Commonwealth Engineering (ComEng)
DL500S FPD9 "World Locomotive" (251B) Standard Co-Co Wheel Arrangement,
with double-ended carbody design; built by ALCo-Schenectady,
MLW and Cia Eskalduna (Spain)
DL503S FD9
DL510 n.s.
DL515 C515
DL515I C515 DL515 modified for India.
DL515T C515 DL515 modified for Taiwan (proposed).
MX615 MX615
MX620 MX620, various modifications:Tunisia, Portugal,Sri Lanka
MX624 MX624
MX626 MX626
MX627 MX627
MX636 MX636
MXS620 MXS620
MXS624 MXS624
MXS627 MXS627
DL521 RSD8
DL531 RSD8
DL531A RSC8
DL532 RS8
DL532B RS8
DL533 RSD8
DL543 RSCC8
DL530 RSD9
DL543 RSD14
DL540 RSD16
DL541 RS20
DL541 RSC20
DL541 RSD20
DL551 RSC25
DL531B RSD26
DL531G RSD26 A.E. Goodwin (Australia)
DL560 RSD29
DL560A RSD29
DL560B RSD29
DL560C RSD29
DL560D RSD29
DL536 RS30
DL551B RSD30
DL534 RSC31
DL534 RSD31
DL543 RSD34
DL550 S14
DL535 RSD30 }
DL535A RSD30 }
DL535B RSD39 }
DL535C n.s. ) Basic DL535 designs regrouped into "Series C14"
DL535E n.s. ) by MLW-Worthington after ALCo closure in 1969.
DL535M RSD35 }
DL535S n.s. }
DL535T n.s. }
DL522G n.s. A.E. Goodwin (Australia)
DL536B n.s.
DL537 n.s.
DL539 n.s.
DL542 n.s.
DL543A n.s.
DL543SA n.s. DL543 modified for South African Railways (Proposed)
DL543SPAP n.s. DL543 modified for RENFE, utilizing "trade-in" components
from DL500-Series locomotives on RENFE roster (Proposed)
DL544 n.s.
DL550K n.s. DL550 modified for Korean National Railways (Proposed)
Series B11 Interim MLW designator for 1100hp, 4-axle export designs;
superseded by BBD model/spec MX412 (none built).
Series B14 Interim MLW designator for 1400hp, 4-axle export designs;
superseded by BBD model/spec MX415 (none built).
Series C11 Interim MLW designator for 1100hp, 6-axle export designs;
superseded by BBD model/spec MX612 (none built).
Series C14 Interim MLW designator for 1400hp, 6-axle export designs;
superseded by BBD model/spec MX615.
Series C20 Interim MLW designator for 2000hp, 6-axle export designs;
superseded by BBD model/spec MX620.
Series C22 Interim MLW designator for 2200hp, 6-axle export designs;
superseded by BBD model/spec MX624.
Series C26 Interim MLW designator for 2600hp, 6-axle export designs;
superseded by BBD models/specs MX626, MX627 and MXS627.
Updated: 12 April 96 Copyright © 1995-1996, The ALCo Collections All rights reserved.
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