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[–] 23 points 5 months ago (5 children)

I wonder if there’s even a gain in total miles they can travel given how much air resistance that sail adds. Wonder what RPM the engine is pushing going highway speeds.

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  • [–] 6 points 5 months ago (4 children)

    Same speed = same RPM, regardless of load / air resistance. Unless they have to drive in a lower gear to make it work, but I doubt that

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  • [–] 2 points 5 months ago (1 child)

    More surface area = more drag. A big ol non aerodynamic cube will definitely be adding more drag. Other than that, yeah load doesn't really effect mpg

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