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

All engines are designed to give the best economy at a certain developed indicated horsepower called full load.

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

Knowing the average weight of steam supplied per hour for the run, and the average indicated horsepower developed during the same period, the water rate of the engine is easily computed.

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

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

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)