indicated horsepower

American  

noun

1. the horsepower of a reciprocating engine as shown by an indicator record. ihp, IHP

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indicated horsepower British  

noun

1. the power output of a piston engine calculated from the mean effective pressure in the cylinder as derived from an indicator diagram and the speed of the engine in revolutions per minute

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Etymology

Origin of indicated horsepower

First recorded in 1870–75

Example Sentences

The indicated horsepower of the "Titanic" was 50,000, developed in two reciprocating engines driving two wing propellers and a single turbine driving a central propeller.

From Scientific American • Apr. 11, 2012

Her indicated horsepower was 18,238, developing a speed of 18.9 knots.

From The Story of the Great War, Volume VI (of VIII) History of the European War from Official Sources by Reynolds, Francis J. (Francis Joseph)

The steam consumption is commonly called the water rate, and is expressed in pounds of dry steam required per indicated horsepower per hour.

From Steam Engines Machinery's Reference Series, Number 70 by Anonymous

The consumption of fuel was heavy, being commonly from 7 lb. to 10 lb. per gross indicated horsepower per hour.

From Scientific American Supplement, No. 312, December 24, 1881 by Various

In the rolling mill, measuing 64 by 38 feet, three double-cylinder engines, working up to 293 indicated horsepower, give motion to 18 pairs of rolls, rolling four to six tons of steel per week.

From The Story of the Invention of Steel Pens With a Description of the Manufacturing Process by Which They Are Produced by Bore, Henry