Army recognized that the addition of an auxiliary power unit (APU) could be an answer. ![]() In addition to issues such as noise, fuel consumption and heat signature, the design precluded any form of “silent overwatch” to keep critical electrical systems online without running the engine.īattery power was eventually utilized as an interim solution, but the U.S. One of the main drawbacks to the initial Abrams design was the fact that the power for all its various systems – everything from propulsion to operating fire control and communications systems – was derived from its main 1500 hp Honeywell AGT1500C multi-fuel turbine engine. Army in a number of conflicts such as the Gulf War.īut while it dominated every battlefield it has fought upon, that’s not to say the vehicle was perfect. Since it debuted in 1980, the M1A2 Abrams has been one of the premier battle tanks in the world and has been the tip of the spear for the U.S. ![]() ![]() M1A2 tank upgrade includes Marvin Land Systems APU driven by modified Hatz diesel
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