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  2. Turn (angle) - Wikipedia

    en.wikipedia.org/wiki/Turn_(angle)

    Support for "tr" was also added to newRPL for the HP 50g in 2016, and for the hp 39g+, HP 49g+, HP 39gs, and HP 40gs in 2017. [ 11 ] [ 12 ] An angular mode TURN was suggested for the WP 43S as well, [ 13 ] but the calculator instead implements "MUL π " ( multiples of π ) as mode and unit since 2019.

  3. Prony brake - Wikipedia

    en.wikipedia.org/wiki/Prony_brake

    The term "brake horsepower" is one measurement of power derived from this method of measuring torque. (Power is calculated by multiplying torque by rotational speed .) [ 1 ] Essentially the measurement is made by wrapping a cord or belt around the output shaft of the engine and measuring the force transferred to the belt through friction .

  4. Horsepower - Wikipedia

    en.wikipedia.org/wiki/Horsepower

    Two common definitions used today are the imperial horsepower as in "hp" or "bhp" which is about 745.7 watts, and the metric horsepower as in "cv" or "PS" which is approximately 735.5 watts. The electric horsepower "hpE" is exactly 746 watts, while the boiler horsepower is 9809.5 or 9811 watts, depending on the exact year.

  5. Engine power - Wikipedia

    en.wikipedia.org/wiki/Engine_power

    Engine power is the power that an engine can put out. It can be expressed in power units, most commonly kilowatt, pferdestärke (metric horsepower), or horsepower.In terms of internal combustion engines, the engine power usually describes the rated power, which is a power output that the engine can maintain over a long period of time according to a certain testing method, for example ISO 1585.

  6. Ton of refrigeration - Wikipedia

    en.wikipedia.org/wiki/Ton_of_refrigeration

    Just as horsepower and candlepower were intuitive units of measure for people living through the transition from horse to steam power [3] and from flame-based to electric lighting, so was the ton of refrigeration an intuitive unit of measure during a technological change, as the ice trade gradually included growing percentages of artificial ice ...

  7. Tax horsepower - Wikipedia

    en.wikipedia.org/wiki/Tax_horsepower

    The tax horsepower or taxable horsepower was an early system by which taxation rates for automobiles were reckoned in some European countries such as Britain, Belgium, Germany, France and Italy; some US states like Illinois charged license plate purchase and renewal fees for passenger automobiles based on taxable horsepower.

  8. Jet engine performance - Wikipedia

    en.wikipedia.org/wiki/Jet_engine_performance

    The type of jet engine used to explain the conversion of fuel into thrust is the ramjet.It is simpler than the turbojet which is, in turn, simpler than the turbofan.It is valid to use the ramjet example because the ramjet, turbojet and turbofan core all use the same principle to produce thrust which is to accelerate the air passing through them.

  9. HP 33s - Wikipedia

    en.wikipedia.org/wiki/HP_33s

    HP "equation list" equation editor (fully algebraic) in both the stand-alone list as well as in keystroke programs; HP Solver feature (solves equations and functions for one unknown) Function integration feature; All mathematical operations and features fully functional in all modes; Unit conversion and constants