indicated horsepower

noun

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

indicated horsepower

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

Word History and Origins

Origin of indicated horsepower¹

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

The result in each case is an increase in cylinder condensation, and as the load becomes lighter, the friction of the engine itself becomes a more important part of the total indicated horsepower; that is, as the load becomes lighter, the mechanical efficiency is reduced.

From Project Gutenberg

The indicated horsepower developed under certain standard conditions.

From Project Gutenberg

The brake horsepower commonly varies from 80 to 90 per cent of the indicated horsepower at full load, depending upon the type and size of engine.

From Project Gutenberg

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 Project Gutenberg