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Piko Expert (HO) Krauss-Maffei ML4000 D&RGW - RP25, DCC/Sound

PIKO Expert | HO scale (1:87) | RP25, DCC/sound

Krauss-Maffei ML4000 Diesel Locomotive
Denver & Rio Grande

Item Number	Road Number	Stock Status
97451	4001
97454	4002
97457	4003

Krauss-Maffei of Germany worked closely with the Southern Pacific and 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 only 2000 HP or less. .............../ continue below

$346.66 $419.99 -17.46%

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In the event of a warranty issue, we will assist with your claim to respective manufacturer.

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Description

Features:

RP25 wheels
Silky-smooth & powerful PIKO Mechanism for great low-speeds and precise running
Period-specific details
PIKO knuckle couplers
PIKO TrainSound® Decoder (on DCC/Sound versions)
27 DCC functions (subject to limitations of your controller)

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The idea of replacing two locos with one in mainline service had great appeal. The hydraulic transmissions were an effort to eliminate the complexity and maintenance issues of electrical traction motors and all their related controls.

Three “Prototype” locos were delivered to SP in 1961 and three to D&RGW. These cab locos with their rounded noses and full carbodies looked very different than the slightly larger batch of “Series” hood locos later delivered to the SP. Besides the very different paint schemes, the most notable visual difference between the SP and D&RGW As-Delivered locos was 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, both roads 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 SP and 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 six “Prototype” locos survived the decade, but they made an indelible mark with many thousands of fans.