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

The indicated horsepower developed under certain standard conditions.

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

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)

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

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