Definition:FPS/Power/Horsepower

Definition

The horsepower is an FPS unit of power.

It is defined as being:

the amount of power required to apply $550$ pounds force through a linear displacement of $1$ foot in $1$ second.

Conversion Factors

\(\ds \)

\(\)

\(\ds 1\)

horsepower

\(\ds \)

\(=\)

\(\ds 550\)

foot pounds force per second

\(\ds \)

\(=\)

\(\ds 33 \, 000\)

foot pounds force per minute

\(\ds \)

\(\approx\)

\(\ds 745 \cdotp 70\)

watts

\(\ds \)

\(\approx\)

\(\ds 0 \cdotp 74570\)

kilowatts

Symbol

$\mathrm {hp}$

The symbol for the horsepower is $\mathrm {hp}$.

The $\LaTeX$ code for \(\mathrm {hp}\) is \mathrm {hp} .

Also known as

The horsepower is presented by some sources as either horse-power or horse power.

Sources

• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $1.$ Units and Abbreviations: $1.3$ British and other units
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): horsepower
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): horsepower
• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): horsepower