Comments by "Science in Engineering" (@matsv201) on "American Reacts to Why European Trucks Have So Much MORE Power Than American Trucks" video.

  1.  @MlCROPIZZA  I´m pretty sure Finland have basically the same rules as in Sweden for sub maximum weight truck. That is typically 8 tons per paired axle or 10 tons per single axle. Where paired axle is any axle that is closer than 2 meter CC. So something like a mobile crane with 5 single axle can be 50 tons. Typically a 5 axle truck is in most cases 2 boggier and 1 single, then the maximum would be 42 tons.
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  2. Scandinavia.. or rather Nordic countries have very different from country to country. Denmark use to have 44 tons, just got 60 tons. Finland got 84 tons, Sweden got 72 going to be upgraded to ~90 tons this summer. Norway have something else, like 50 tons or something, don´t remember exactly. Also Finland and sweden have exception roads that have 90+ tons already since 10 year.
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  3. No.. torque really don´t matter, power do. Torque is really just what comes out of the engine. The gearbox will transform the tuque from the engine to what ever is needed. The reason why trucks have so high torque have nothing to do with that trucks need high torque. No the reason is very different. Slow engines with high compression is more efficient, but they also give more torque. So the high torque of truck engine is a effect of trying to get as high efficiency as possible. A lot of people just assumes that trucks need high torque, because they have it. No, its not even close to the case. You don´t need to change gears more often in Europe, because most European trucks gave automatic sifters (not to be confused with automatic gearboxes). While steep grades does exist in Europe, they are pretty uncommon on major roads. They are not non existing, but really quite uncommon. Federal weight limit in the us is 80 000lb, not tons. I don´t know what they got that from. Is it Chinese tons? Its Volvo and mack that shares data, and Scania and Man. mack is actually a volvo subsidiary today, they are basically volvo but with a different brand... Granted, most volvo trucks sold in US is based on Mack cabs.. that in turn have components from volvo. Scania is 50% owned by Man that in turn is owned by VW that also owns Navistar that owns international. So i would guess that International, man and scania share engine parts.
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  4.  @MlCROPIZZA  You can have a driving axel of 11.5 tons if its paired with a lighter boggi axel. This is typically done when the boggi axel is steard and single tire.
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  5.  @Timmer1980  well that is true for the one registered not as truck but mobile equipment. There is some special rules around that that i don´t know the details of
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  6. It will be changed 1 of July this year to something higher, don´t remeber exactly what it was.
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