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  2. Medium Tactical Vehicle Replacement - Wikipedia

    en.wikipedia.org/wiki/Medium_Tactical_Vehicle...

    The Medium Tactical Vehicle Replacement (MTVR) is a series of vehicles used by the U.S. Marines. [1] [9] The first MTVRs were delivered in late 1999.The MTVR is the equivalent of the U.S. Army's Family of Medium Tactical Vehicles (FMTV); the Marines do not use the FMTV (with the exception of the FMTV-based HIMARS) and the Army does not use the MTVR.

  3. Family of Medium Tactical Vehicles - Wikipedia

    en.wikipedia.org/wiki/Family_of_Medium_Tactical...

    In July 1984, a program to look at a future 5-ton truck procurement to replace in-service 2.5- and 5-ton trucks began. Cost analysis demonstrated that the procurement should be for both 2.5- and 5-ton trucks. In October 1984, the FMTV formally began as a program. The request for proposals (RFP) for FMTV was released in 1988. At this time it was ...

  4. Energy management system - Wikipedia

    en.wikipedia.org/wiki/Energy_management_system

    An energy management system (EMS) is a system of computer-aided tools used by operators of electric utility grids to monitor, control, and optimize the performance of the generation or transmission system.

  5. M35 series 2½-ton 6×6 cargo truck - Wikipedia

    en.wikipedia.org/wiki/M35_series_2½-ton_6×6...

    The M35 2½-ton cargo truck is a long-lived 2½-ton 6×6 cargo truck initially used by the United States Army and subsequently utilized by many nations around the world. Over time it evolved into a family of specialized vehicles. It inherited the nickname "Deuce and a Half" from an older 2½-ton truck, the World War II GMC CCKW.

  6. Coefficient of performance - Wikipedia

    en.wikipedia.org/wiki/Coefficient_of_performance

    The heat pump itself can be improved by increasing the size of the internal heat exchangers, which in turn increases the efficiency (and the cost) relative to the power of the compressor, and also by reducing the system's internal temperature gap over the compressor. Obviously, this latter measure makes some heat pumps unsuitable to produce ...

  7. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    The power-to-weight ratio (specific power) is defined as the power generated by the engine(s) divided by the mass. In this context, the term "weight" can be considered a misnomer, as it colloquially refers to mass.

  8. Horsepower - Wikipedia

    en.wikipedia.org/wiki/Horsepower

    A number of names are used for the power developed at various stages in this process, but none is a clear indicator of either the measurement system or definition used. In general: nominal horsepower is derived from the size of the engine and the piston speed and is only accurate at a steam pressure of 48 kPa (7 psi); [ 29 ]

  9. Ton of refrigeration - Wikipedia

    en.wikipedia.org/wiki/Ton_of_refrigeration

    It was originally defined as the rate of heat transfer that results in the freezing or melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours. [1] [2] The modern definition is exactly 12,000 Btu IT /h (3.516853 kW). Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of ...

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