D&RGW Krauss-Maffei ML4000 Diesel Loco

AS DELIVERED VERSIONS

Krauss-Maffei of Germany worked closely with the Denver & Rio Grande to develop a revolutionary new
diesel-hydraulic locomotive. At the start of the 1960s, these beasts packed 4000 horsepower, a feat that would not
be matched by American Diesel locomotive builders for many years.

Typical American diesels of the time had only2000 HP or less. The idea of replacing two locos with one in mainline
service had great appeal. The hydraulictransmissions were an effort to eliminate the complexity and
maintenance issues of electrical traction motors and all their related controls

Three “Prototype” locos were delivered in 1961 to D&RGW. D&RGW As-Delivered locos had the big “barrel”
headlight housing on the top of the nose of the D&RGW units. This housed the moving Gyralite safety lights.

Upon delivery they promptly put their KMs to work in the hardest possible service, with dynamometer cars
often following to test every aspect. Performance was impressive, but teething problems quickly developed.
German technicians sent over to the D&RGW worked to address issues and train local maintenance crews.
Over time, many modifications were made and reliability improved, but in the end, the locos may simply have been
victims of a difference of cultures. Technology that was commonplace and successful in European railroads just did
not mesh well with American railroad operation and maintenance practices.
None of the “Prototype” locos survived the decade, but they made an indelible mark with many thousands of fans.

D&RGW #4001

Piko 97451 HO DCC/Sound $419.99

YOUR PRICE $335.99

ONE IN STOCK

D&RGW #4003

Piko 97457 HO DCC/Sound $419.99

YOUR PRICE $335.99

ONE IN STOCK