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high speed trains are fairly aerodynamic, but trucks are another matter, where the cabins are somewhat aerodynamic at best most of this is undone by ticking a box on the back with all 4 corners extending past the cabin, i imagine rounding the front edges of most cargo boxes could already see massive improvements.
it's strange how earodynamic knowlege can exist in one erea of trasport for decades and be so bluntly ignored in another
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aer·o·dy·nam·ics: the science of passing gass
*i can coast for miles and miles and miles*
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