Freight locomotives typically have horsepower ratings ranging from around 2,000 to over 6,000 horsepower, depending on the design and purpose. For example, modern diesel-electric freight locomotives, like the GE ES44AC, can produce about 4,400 horsepower. The specific horsepower can vary based on factors such as the locomotive model, its intended use, and the weight of the cargo being transported.
Modern hood unit weight around 75 tonnes for 2000 HP passenger unit up to 250 tonnes for 6000+ HP freight units like the dual engined EMD DDA40X.
Modern hood unit weight around 75 tonnes for 2000 HP passenger unit up to 250 tonnes for 6000+ HP freight units like the dual engined EMD DDA40X.
Casey Jones
true
No! According to AAR definitions, traction horsepower (THP) is the diesel engine INPUT to the main generator available for traction purposes only (generator, electric motors and gear losses are not taken into consideration). So THP is the gross diesel engine HP less the auxiliary load HP (typically 5% of the diesel engine brake HP, for fan driving and other auxiliary vital equipment). Wheel rim HP is usually 85%+ of the traction HP (in a modern locomotive). Drawbar HP (DBHP) will be somewhat smaller (especially as speed increases) due to locomotive resistance as a vehicle (+ 0.75xTHP at maximum speed for a powerful freight loco.). For example, in a SD90MAC diesel loco., the GM16V265H diesel engine is capable of 6300 BHP, but the locomotive is rated at 6000 THP. The drawbar HP can top 5300 DBHP at low speed.
true
wag - 9 (6500hp)
true
A train is a series of cars pulled by a locomotive for transporting passengers or freight by rail.
True(OW)
True (OW)
The heaviest steam locomotive ever built is the Union Pacific Big Boy, which weighed around 1.2 million pounds (540 metric tons). It was designed for hauling heavy freight trains over steep mountain passes.