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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.
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.
The Jamaican sprinter Usain Bolt produced a maximum of 3.5 hp (2.6 kW) 0.89 seconds into his 9.58 second 100-metre (109.4 yd) sprint world record in 2009. [14] [failed verification] In 2023 a group of engineers modified a dynamometer to be able to measure how much power a horse can produce. This horse was measured to 5.7 hp (4.3 kW). [15]
A fractional-horsepower motor (FHP) is an electric motor with a rated output power of less than one horsepower (745.7 W) (the term 'fractional' indicates less than one unit). There is no defined minimum output, however, it is generally accepted that a motor with a frame size of less than 35mm square can be referred to as a 'micro-motor'.
Brake-specific fuel consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft power. It is typically used for comparing the efficiency of internal combustion engines with a shaft output.
Type Road number Build year Total produced AAR wheel arrangement Prime mover Power output Image EMC 1800 hp B-B: ATSF 1: 1935 1 B-B+B-B: Dual Winton 12-201-A: 1,800 hp (1,342 kW)
Download as PDF; Printable version; In other projects Wikidata item; ... 165–260 hp (167–264 PS; 123–194 kW), 330–560 lb⋅ft (46–77 kg⋅m) Engine Variants.
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... 41.7 hp (31 kW) to 100 hp (75 kW) per cylinder: Chronology; Successor: