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Title: Road Engnine Post by: YellowHillsCentral on November 12, 2007, 10:46:20 PM Okay,
I need to know what the definition of a road engine please. I mean, I know, but I don't know, ya know? --whatever. PLEASE HELP ME! Title: Re: Road Engnine Post by: the Bach-man on November 13, 2007, 12:16:12 AM Dear YHC,
It's a locomotive used on the line, as opposed to a switcher, used in the yards. Have fun! the Bach-man Title: Re: Road Engnine Post by: Tom Lapointe on November 13, 2007, 12:18:05 AM A "road engine" , in railroad lexicon, usually refers to a locomotive used mainly for mainline service - getting a complete train from point "A" to point "B", with little or no switching operations performed enroute. ;) A "yard engine" by contrast, is used entirely for switching operations. ;D Examples of road engines would be larger locomotives like U.P.'s Challenger 4-6-6-4's & 4-8-8-4 Big Boys, N.Y.C.'s 4-6-4 Hudsons & 4-8-4 Niagras, PRR's K4s 4-6-2 Pacifics & 4-8-2 Mountain types in steam; EMD E-units, Alco PA's, most 6-axle high-horsepower hood diesels. Steam yard engines were typically 0-4-0's, 0-6-0's or 0-8-0's. In diesels, EMD units carrying the "SW designation (SWitcher) were designed primarily as yard units. :) Tom
Title: Re: Road Engnine Post by: Kevin Strong on November 13, 2007, 02:52:09 AM I have heard on more than one occasion that the "W" in SW stood for "welded," a reference to the construction of the frame. Not being a diesel person, I filed it away as mere trivia, not relevant historical fact. ;D Perhaps someone will chime in to clarify.
Later, K Title: Re: Road Engnine Post by: Tom Lapointe on November 13, 2007, 03:28:50 AM Quote I have heard on more than one occasion that the "W" in SW stood for "welded," a reference to the construction of the frame. Not being a diesel person, I filed it away as mere trivia, not relevant historical fact. Grin Perhaps someone will chime in to clarify. I won't dispute you on that, Kevin; I'm not a "diesel guy" either! ;) Would be interesting to find if that's true. 8) Tom Title: Re: Road Engnine Post by: Charlie Mutschler on November 13, 2007, 11:07:59 AM The road engine,or road locomotive, is the locomotive assigned to move the train over the road. One or more helper locomotives may be added to the train to assist it in climbing steep grades. The helper may be coupled in front of the road locomotive, behind the caboose, between the last car and the caboose (preferred practice with wooden framed cabooses), or into the middle of the train. At the summit of the climb,the helper(s) are cut out of the train, and the road locomotive handles the train down grade by itself.
Title: Re: Road Engnine Post by: Cascade Northern on November 13, 2007, 08:44:08 PM Here is a LONG list of diesel locomotive classifications:
Diesel Locomotive Builders ALCO - America Locomotive Company BBC - Brown Boveri Company, now ABB, Switzerland BLH - Baldwin-Lima-Hamilton Corporation BLW - Baldwin Locomotive Works Budd - Budd Company EMC - Electro Motive Corporation EMD - Electro Motive Division EMD - Electro Motive Diesel F-M - Fairbanks-Morse GE - General Electric GM - General Motors IS - Ingalls Shipbuilding Company KM - Krauss-Maffei Aktiengesellschaft, Germany L-H - Lima-Hamilton MLW - Montreal Locomotive Works RailPower - RailPower Technologies Corporation SIG - Schweizerische Industrie Gesellschaft, Switzerland UA - United Aircraft, Surface Transportation System of Sikorsky Aircraft Division WS - Werkspoor N.V. Amsterdam, Netherlands Model Classification 4S - 4-axles Switcher A unit - Cab Unit AA - Motorcar A-unit AB - Motorcar B-unit AC - Alternating Current AMD - Amtrak Diesel AS - ? B - 2-axles B unit - Cabless Booster Unit BL - Branch Line C - Century (Alco) C - 3-axles (GE) C - Cummins (EMD) CFA - Cab unit Freight A-unit CFB - Cabless unit Freight B-unit CPA - Cab unit Passenger A-unit CPB - Cabless unit Passenger B-unit DD35B - 8-axles (D-D) using SD35 components B-unit DDA40X - 8-axles (D-D) A-unit using SD40 components DL - Dual Service DR - Diesel Road unit DRS - Diesel Road Switcher DRS6-4-15 - 6-axles 4 powered 1,500 Horsepower DS - Diesel Switcher DT - Diesel Transfer E - Eighteen-Hundred Horsepower Erie - Built at the plant in Erie, PA (F-M) F - Freight FL - Freight with special third rail electric pick-up FP - Freight-Passenger FT - Freight Twenty-seven-Hundred Horsepower GP - General Purpose H - Hood unit H10-44 - Hood unit, Thousand Horsepower 4-axles 4 powered HH - High Hood I - Insulated Cab LTW - Lightweight Train M - Montreal-designed M - North America Wide Cab, DC current MAC - North America Wide Cab, AC current MP - Multipurpose NC - Nine-Hundred Horsepower, Cast Frame NW - Nine-Hundred Horsepower, Welded Frame PH - Elongated Frame, Steam Generator RAm - Locomotive with speed over 110 km/h (R), train composition with 1. class coach (A), diesel engine (m) RDC - Rail Diesel Car RF16 - Road Freight 1,600 Horsepower RS - Road Switcher RSC - Road Switcher 6-axle, 4 powered (A1A) RSD - Road Switcher 6-axles S - Switcher SC - Six-Hundred Horsepower, Cast Frame SD - Special Duty SDP - Special Duty Passenger SW - Six-Hundred Horsepower, Welded Frame SW - Switcher (after HP increased over 600 HP) SW1 - Switcher Version 1 SW900 - Switcher 900 Horsepower TR - Transfer U - Universal VO - ? W - Wide Cab And I am sure there are many many many more........ |