The Otah Thread

Discussion in 'General Discussion' started by Chris, Feb 17, 2011.

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  1. Sep 11, 2013 #781

    Otahyoni

    Otahyoni

    Otahyoni

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    I dont think my phone line is 13 miles long... :p
     
  2. Sep 11, 2013 #782

    Chris

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    It might be?
     
  3. Sep 11, 2013 #783

    havasu

    havasu

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    I thought of Otah when I saw this on the web today.



    ENGINEERING QUESTION

    Conditions:

    A backhoe weighing 22 tons is on top of a lowboy trailer and heading east on Interstate 70 near Hays, Kansas.

    The extended shovel arm is made of hardened refined steel and the approaching overpass is made of commercial-grade concrete, reinforced with 1 inch steel rebar spaced at 6 inch intervals in a criss-cross pattern layered at 1 foot vertical spacing.

    Solve: When the shovel arm hits the overpass, how fast do you have to be going to slice the bridge in halfway?

    (Assume no effect for headwind and no braking by the driver.) Extra Credit: Solve for the time and distance required for the entire rig to come to a complete stop after hitting the overpass at the speed calculated above.

    Yes, you can neglect friction.

    I couldn't solve it either.
    But, the pictures are great

    otah.jpg

    otah1.jpg

    otah2.jpg
     
  4. Sep 11, 2013 #784

    Admin

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    I wonder if the driver ever worked again?
     
  5. Sep 12, 2013 #785

    Otahyoni

    Otahyoni

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    That's an old story...good pictures though... I tjink it was Something like $6M in damages...
     
    Austin likes this.
  6. Sep 12, 2013 #786

    Admin

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    Is it 6 million per bridge?

    That's why they are all falling apart now. Ain't no one that can afford that.
     
  7. Sep 13, 2013 #787

    Otahyoni

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  8. Sep 13, 2013 #788

    phishfood

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    Now you're playing with power!
     
  9. Sep 13, 2013 #789

    havasu

    havasu

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    Good lord buddy. You could cause lots of damage with that thing. Be careful!
     
  10. Sep 13, 2013 #790

    Otahyoni

    Otahyoni

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    543hp with a power bulge to 610(ish)hp... I hope i get to run it some this year. :D
     
  11. Sep 13, 2013 #791

    Otahyoni

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    Mark, it's only about $504k....not including the head... :D
     
  12. Sep 13, 2013 #792

    havasu

    havasu

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    It is amazing to learn the costs of these huge machines. How on earth do they afford it? On our recent trip, I would see 5-6 of these things parked at one farm, so I guess many rent them?
     
  13. Sep 13, 2013 #793

    Admin

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    That's my guess.

    I have a ton of equipment rental places around me as I'm between to major metro areas. They always seem busy.
     
  14. Sep 14, 2013 #794

    Otahyoni

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    Rentals, or lease. I don't know if we own ours outright or make payments. We trade up about every two years so that helps. Boss said it costs us about $17k a year to run and keep the combine.
     
  15. Sep 14, 2013 #795

    phishfood

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    At $504,000 for the machine, it would take 30 years at $17,000 a year to pay it off, and that is not counting in interest. Either it doesn't cost 504K, or your employer is paying a lot more than 17K a year.
     
  16. Sep 14, 2013 #796

    havasu

    havasu

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    I'm guessing the $17k per year is just maintenance and fuel costs.
     
  17. Sep 14, 2013 #797

    Chris

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    Maybe the fuel alone, our big machine uses 100 gallons a day. The 17k sounds more like a monthly deal.
     
  18. Sep 14, 2013 #798

    Otahyoni

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  19. Sep 14, 2013 #799

    phishfood

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    I want one of those tractors.

    I could store a shovel on the rear, and use it to drive right up to a rough in job.
     
  20. Sep 15, 2013 #800

    Otahyoni

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    So i spent pretty much the whole day installing a Gear Vendors overdrive on my truck only to have it not only not work, but take out reverse too... $600 wasted... Guess i'll find another factory driveshaft and go back to stock... :(
     

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