Difference between revisions of "Horsepower"

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:''This article is about the unit of measurement.  For the machine which used horses to generate power, see [[horse power (machine)]]. For other uses of ''hp'', see [[HP (disambiguation)]]''.
:''This article is about the unit of measurement.  For the machine which used horses to generate power, see [[horse power (machine)]]. For other uses of ''hp'', see [[HP (disambiguation)]]''.


The '''horsepower''' ('''hp''') is the name of several non-metric [[units of measurement|units]] of [[Power (physics)|power]]. In scientific discourse the term "horsepower" is rarely used due to the various definitions and the existence of an [[SI]] unit for power, the [[watt]] (W). However, the idea of horsepower persists as a legacy term in many languages, particularly in the [[automobile|automotive]] industry for listing the maximum rate of power application of [[internal-combustion engine]]s.
The '''horsepower''' ('''hp''') is the name of several non-metric units of power. In scientific discourse the term "horsepower" is rarely used due to the various definitions and the existence of an SI unit for power, the watt (W). However, the idea of horsepower persists as a legacy term in many languages, particularly in the [[automobile|automotive]] industry for listing the maximum rate of power application of [[internal-combustion engine]]s.


There are two important factors to consider when evaluating a "horsepower" figure:
There are two important factors to consider when evaluating a "horsepower" figure: