Citizendia
Your Ad Here

EMD GP49
Power type Diesel-electric
Builder General Motors Electro-Motive Division
Model GP49
AAR wheel arr. B-B
Gauge 4 ft 8½ in (1,435 mm)
Prime mover EMD 645F3B
Cylinders 12
Power output 2800 hp (2. Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad The AAR wheel arrangement system is a method of classifying locomotive (or unit Wheel arrangements that was developed by the Association of American Railroads. Rail gauge is the distance between the inner sides of the two parallel rails that make up a railway track. In Locomotives, a prime mover is the primary source of power to run the locomotive The EMD 645 is a family of Diesel engines built by General Motors' Electro-Motive Division for Locomotive, marine and Stationary engine A cylinder is the central working part of a Reciprocating engine, the space in which a Piston travels 1 MW)

An EMD GP49 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division. A locomotive is a railway Vehicle that provides the motive power for a Train. Electro-Motive Diesel Inc (formerly the Electro-Motive Division of General Motors Corporation is currently the world's second largest builder of Railroad Power was provided by an EMD 645F3B 12-cylinder engine which generated 2800 horsepower (2. The EMD 645 is a family of Diesel engines built by General Motors' Electro-Motive Division for Locomotive, marine and Stationary engine A cylinder is the central working part of a Reciprocating engine, the space in which a Piston travels 1 MW). The GP49 was marketed as one of four models in the 50 series introduced in 1979. The 50 series includes GP/SD49 and GP/SD50. Both the GP and SD50 was relatively popular with a total of 278 GP50's and 427 SD50s built. The SD49 was advertised but never built and a total of 9 GP49's were built. Alaska Railroad is the only company that ordered it in two orders; the first was ARR 2801-2804 under order number 837049-1-4, built in September of 1983 and the second was ARR 2805-2809 under order number 847035-1-5, built in May of 1985. The Alaska Railroad is a Class II railroad which extends from Seward and Whittier, in the south of the state of Alaska, in the United States Six GP39Xs were built in November of 1980 for the Southern Railway under order Number 786284-1-6 and upgraded to GP49's shortly thereafter.

Contents

Performance

While possessing a fairly high horsepower rating (2950 total HP), the traction horsepower was rated at 2800 while 150 HP was used to run the onboard appliances. The GP49 is known for its slow acceleration, this was due to the radar unit that is mounted under the front pilot to monitor the actual ground speed when the engine is moving to prevent wheel slip. This system is known as EMD's Super Series wheel slip control that was introduced on the GP40X. It tells the engine's computer to slow the speed of the motors to prevent wheel slip. The GP49 is equipped with a 12-645F3B engine with an AR15 alternator rated at 4680 amperes and has four D87 traction motors. Externally the GP49 looks like a GP59 but has two 48" fans above the radiator instead of three as on the GP50, and the engine-room has eight access doors on each side under the Dynamic Brake blister for engine and turbocharger maintenance verses 10 on the GP50.

Use

In December of 2006, the Alaska Railroad auctioned five units (numbers 2801, 2803, 2804, 2806, and 2807) plus parts;[1] Helm Leasing was the winning bidder with a bid of $1. The Alaska Railroad is a Class II railroad which extends from Seward and Whittier, in the south of the state of Alaska, in the United States 3 million. [2] The Alaska Railroad's four remaining units (2802, 2805, 2808, and 2809) are still in service as of March, 2007. [3][4]

Tri-Rail in Florida has since bought Norfolk Southern's six GP49 variants (ex-GP39X units) for use on commuter trains in Florida. Tri-Rail is a Regional rail line linking Miami, Fort Lauderdale, and West Palm Beach, Florida, United States The locomotives have since been rebuilt with HEP, and have been de-rated to 2400 HP from 2800. [5]

Related Sites

References

  1. ^ Alaska Railroad Corporation invitation to bid
  2. ^ Alaska Railroad Corporation bid results for ITB 06-001, GP49 locomotive engines
  3. ^ Combs, John. Alaska Railroad at a Glance, John's Alaska Railroad Web Page. March 8, 2007, retrieved March 20, 2007. Events 1618 - Johannes Kepler discovers the third law of planetary motion. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1600 - The Linköping Bloodbath takes place on Maundy Thursday in Linköping, Sweden. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century.
  4. ^ Combs, John. Alaska Railroad Locomotive Roster, John's Alaska Railroad Web Page. December 15, 2006, accessed March 20, 2006. Events 533 - Byzantine general Belisarius defeats the Vandals, commanded by King Gelimer, at the Battle of Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1600 - The Linköping Bloodbath takes place on Maundy Thursday in Linköping, Sweden. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar.
  5. ^ Destination: Freedom. Alaska Railroad buys eight locomotives. July 21, 2003, retrieved September 8, 2006. Events 356 BC - Herostratus sets fire to the Temple of Artemis in Ephesus, one of the Seven Wonders of the World Year 2003 ( MMIII) was a Common year starting on Wednesday of the Gregorian calendar. Events 70 - Roman forces under Titus sack Jerusalem. 1264 - The Statute of Kalisz Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar.
© 2009 citizendia.org; parts available under the terms of GNU Free Documentation License, from http://en.wikipedia.org
 Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic