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A typical turbocharged V8 diesel engine might have an engine power of 250 kW (340 hp) and a mass of 380 kg (840 lb), [1] giving it a power-to-weight ratio of 0.65 kW/kg (0.40 hp/lb). Examples of high power-to-weight ratios can often be found in turbines.
Two common definitions used today are the imperial horsepower as in "hp" or "bhp" which is about 745.7 watts, and the metric horsepower as in "cv" or "PS" which is approximately 735.5 watts. The term was adopted in the late 18th century by Scottish engineer James Watt to compare the output of steam engines with the power of draft horses .
Engine power is the power that an engine can put out. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.
1 PSh = 0.73549875 kW⋅h = 2647.7955 kJ (exactly by definition) The horsepower-hour is still used in the railroad industry when sharing motive power (locomotives). For example, if Railroad A borrows a 2,500 horsepower locomotive from Railroad B and operates it for twelve hours, Railroad A owes a debt of (2,500 hp × 12 h) = 30,000 hp⋅h.
10,433 horsepower (7,780 kW) 1-hour rating; 9,977 horsepower (7,440 kW) continuous rating One of the most powerful electric locomotives ever built, it also is the most powerful (short term) single-frame locomotive ever built (currently [ when? ] its maximum short term power is limited to 12,000 horsepower (8,948 kW )); It has immense short term ...
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Bracket racing is a form of drag racing that allows for a handicap between predicted elapsed time of the two cars over a standard distance, typically within the three standard distances (1/8 mile, 1,000 foot, or 1/4 mile) of drag racing.
Fastest road car over the 1/4 mile: 9.9 seconds @ 143 mph (230 km/h) Due to its kerb weight of 980 kg (2,161 lb), [ 7 ] the power-to-weight ratio for the GTR720 is 745 bhp (755 PS; 556 kW) per tonne, which is a better ratio than the Bugatti Veyron , Enzo Ferrari , Ascari A10 , Koenigsegg CCX or CCGT , but less than the Koenigsegg CCXR or the ...