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- EMD_DD35 abstract "The EMD DD35 was a 5,000 horsepower (3,700 kW) diesel-electric locomotive of D-D wheel arrangement built by General Motors Electro-Motive Division for the Union Pacific Railroad and Southern Pacific Railroad. In the early 1960s, Union Pacific started asking for a 15,000 hp (11,200 kW) 3-unit locomotive set to not only replace their turbine locomotives, but to bring new generation of diesel locomotives to the states, and then put them into use. The DD35 was a cabless booster (B unit) locomotive that consisted of two GP35 locomotives on a common frame, riding on a pair of 4-axle Flexicoil trucks. The 4-axle truck was considered too harsh on the trackwork to be in the lead, and thus EMD's response to UP's request was a 4-unit (instead of the requested 3-unit set) locomotive set, consisting of a pair of 2,500 hp GP35s sandwiching a pair of DD35s, to make one 15,000 hp locomotive set.EMD produced a demonstrator set like this in September 1963, painted in striking red and white (similar to the Frisco's livery). It was demonstrated on a number of railroads, but the only interest came from Union Pacific and Southern Pacific. UP bought the entire 4-unit demonstrator set, and followed up with an order for 25 more, which were delivered from May through September 1964. The two demonstrator locomotives were numbered 72B and 73B; the 25 production locomotives were assigned 74B through 98B.Southern Pacific ordered a small, three-unit sample, which were shipped with older bearings from six F3B trade-in units, but ordered no more. They were numbered 8400-8402, later 9500-9502, and still later 9900-9902. They were used on SP's mainline between Los Angeles and New Orleans early in their lives, but were among the first locomotives stored whenever there was a downturn in traffic. Later, they were relegated to transfer service between West Colton and yards closer to Los Angeles, mainly Taylor Yard north of downtown. SP scrapped all three units in 1978 after their leases ran out.The DD35s were initially quite unreliable; some of this was blamed on sand from the internal sandboxes getting in electrical gear, so new sandboxes were fitted on the walkways in 1969. The locomotives were among the last EMD road units to be built with DC generators and old-fashioned switchgear, which were more maintenance-intensive than later AC/DC equipment.Once teething troubles had been surmounted, the DD35s were reasonably successful, but they were less flexible than smaller units and thus all of the original B units were withdrawn by 1977 as the railroads faced competition with automobile transportation. The DD35As survived a little longer, until 1981.".
- EMD_DD35 activeYearsEndYear "1964".
- EMD_DD35 activeYearsStartYear "1963".
- EMD_DD35 builder Electro-Motive_Diesel.
- EMD_DD35 engineType Two-stroke_engine.
- EMD_DD35 numberBuilt "30".
- EMD_DD35 powerType Diesel-electric_transmission.
- EMD_DD35 wikiPageExternalLink up-dd35.php.
- EMD_DD35 wikiPageExternalLink centennials.
- EMD_DD35 wikiPageExternalLink UPDD35.shtml.
- EMD_DD35 wikiPageID "1388125".
- EMD_DD35 wikiPageRevisionID "595554514".
- EMD_DD35 aarwheels AAR_wheel_arrangement.
- EMD_DD35 aspiration Turbocharger.
- EMD_DD35 builddate "1963".
- EMD_DD35 builder Electro-Motive_Diesel.
- EMD_DD35 buildmodel "DD35".
- EMD_DD35 caption "35.0".
- EMD_DD35 disposition "No surviving units".
- EMD_DD35 enginetype "2".
- EMD_DD35 generatot "DC generator".
- EMD_DD35 hasPhotoCollection EMD_DD35.
- EMD_DD35 locale North_America.
- EMD_DD35 locobrakes Dynamic_braking_(locomotive).
- EMD_DD35 locobrakes Railway_air_brake.
- EMD_DD35 name "EMD DD35".
- EMD_DD35 powertype Diesel-electric_transmission.
- EMD_DD35 primemover "Dual EMD 16-567D3A".
- EMD_DD35 retiredate "1981".
- EMD_DD35 totalproduction "30".
- EMD_DD35 tractionMotors "DC traction motors".
- EMD_DD35 trainbrakes Railway_air_brake.
- EMD_DD35 transmission Diesel-electric_transmission.
- EMD_DD35 wordnet_type synset-locomotive-noun-1.
- EMD_DD35 subject Category:D-D_locomotives.
- EMD_DD35 subject Category:Diesel_locomotives_of_the_United_States.
- EMD_DD35 subject Category:Electro-Motive_Diesel_locomotives.
- EMD_DD35 subject Category:Freight_locomotives.
- EMD_DD35 subject Category:Locomotives_with_cabless_variants.
- EMD_DD35 subject Category:Railway_locomotives_introduced_in_1963.
- EMD_DD35 subject Category:Scrapped_locomotives.
- EMD_DD35 subject Category:Union_Pacific_Railroad_locomotives.
- EMD_DD35 type Locomotive.
- EMD_DD35 type MeanOfTransportation.
- EMD_DD35 type Product.
- EMD_DD35 type DesignedArtifact.
- EMD_DD35 comment "The EMD DD35 was a 5,000 horsepower (3,700 kW) diesel-electric locomotive of D-D wheel arrangement built by General Motors Electro-Motive Division for the Union Pacific Railroad and Southern Pacific Railroad. In the early 1960s, Union Pacific started asking for a 15,000 hp (11,200 kW) 3-unit locomotive set to not only replace their turbine locomotives, but to bring new generation of diesel locomotives to the states, and then put them into use.".
- EMD_DD35 label "EMD DD35".
- EMD_DD35 label "EMD DD35形ディーゼル機関車".
- EMD_DD35 sameAs EMD_DD35形ディーゼル機関車.
- EMD_DD35 sameAs m.04yl5d.
- EMD_DD35 sameAs Q5323395.
- EMD_DD35 sameAs Q5323395.
- EMD_DD35 wasDerivedFrom EMD_DD35?oldid=595554514.
- EMD_DD35 isPrimaryTopicOf EMD_DD35.
- EMD_DD35 name "EMD DD35".