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Fuel Consumption Cost Of Open Fenders

Discussion in 'General Elio Discussion' started by Sniffy, Jan 27, 2017.

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  1. W. WIllie

    W. WIllie Elio Addict

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    Probably based on a percentage of 2% improvement with the aero fenders.
    (from my experience in aero with the G1)
    Hard to say exactly. Back to back runs in the "wind tunnel" would yield the answer as they are probably using the info obtained from a CAD system.
     
    booboo likes this.
  2. vietvetx2

    vietvetx2 Elio Aficionado

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    I like the looks of the sport fenders but as you turn those exposed wheels it seems like the body would be exposed to spray and crap in anything but dry sunny weather and I live in Louisville Kentucky not Arizona.
     
    Trusting and wizard of ahs like this.
  3. Coss

    Coss Moderator Staff Member Moderator

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    Put a mud flap at the end of them, it doesn't have to be very big, but it does have to go down pretty far.
    It's kind of like riding a bike in the rain that doesn't have a full fender, you end up with a skunk stripe on you; plus it always manages to go over your collar and down your back.
     
  4. TEXAS FLASH

    TEXAS FLASH Elio Fan

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    DON'T know what the answer, but on a Cessna, no wheel flairs will knock 7 mph off the top airspeed!
     
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  5. Mel

    Mel Elio Addict

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    Only at speeds of over 100 mph. At typical road speeds you would see very little change if any at all.
     
    Last edited: Feb 15, 2017
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  6. floydv

    floydv Elio Addict

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    If you want the open wheel look but don't want to lose aerodynamic efficiency, have someone fabricate something like these for your wheels.

    IMG_8353.JPG

    Or these

    IMG_8354.JPG
     
  7. electroken

    electroken Elio Addict

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    Aerodynamic drag increases according to the square of velocity, so the detrimental effect of the open wheel covers will be 4X as apparent at 90 mph as it would be at 45 mph.

    My 1984 Honda VF1100S could go 140 mph all day long in 6th gear. It could not reach 155 mph in 5th or 6th. That is where aerodynamic drag caught up with it (and me).
     
    CrimsonEclipse likes this.
  8. Jim H

    Jim H Elio Addict

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    W
    Welcome from the sunny South West. Glad to have you join us in this journey
     
  9. Ty

    Ty Elio Addict

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    (mental note to self - get a fender for my bicycle) Thanks for the reminder!
     

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