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This video clip was taken at a recent Open House demonstration. The transporters you are seeing are part of a three-unit tandem operating system. where each of the three transporters are rated at 57 tons capacity and the three of them work together under loads that range to 160 tons. The transporters are designed to operate both with engine generated 480 Volt, three-phase power and from plug-in shore power. For this demonstration, the engine supplier was late on delivery, so shore power was used.