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Type: Posts; User: Hector

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  1. Replies
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    I've seen h values ranging from 20-100 W/(m^2*K)...

    I've seen h values ranging from 20-100 W/(m^2*K) depending on vehicle speed, so your value seems in the ballpark. It may be silly to ask, but are you accounting for all 4 rotors? I have made this...
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    Didn't Stuttgart win in Michigan with a 4-cyl? ...

    Didn't Stuttgart win in Michigan with a 4-cyl?



    Didn't Stuttgart win in Michigan without wings? They had some little spoilers built into the bodywork but nothing I would call a serious aero...
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    Gears! Save weight by skipping that pesky chain.

    Gears! Save weight by skipping that pesky chain.
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    Well I know University of Florida was running...

    Well I know University of Florida was running some sort of composites in 1991, though it sounds like it was a composite/aluminum mix. A quote from a history of the program, written by Phil French:
    ...
  5. Thread: intake design

    by Hector
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    2,402

    Very carefully.

    Very carefully.
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    I designed diff mounts that used nothing but...

    I designed diff mounts that used nothing but friction to constrain the diff in the longitudinal direction. Ran them for 2 years and never a slip. It's totally doable.

    Don't make the same mistake...
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    Small world. I live about a mile away from their...

    Small world. I live about a mile away from their shop.
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by AxelRipper:
    Carrots. </div></BLOCKQUOTE>

    Don't you...
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    FRIEND. IS THIS YOU. Biplab's homepage...

    FRIEND. IS THIS YOU.

    Biplab's homepage

    THE INTERNET MAKES FULL OF STRANGE AND EXCITE TIMES. FOR ONLY $5000 $USD I PROMISE FOR MAKE YOU THE PAPERS YOU DESIRE. AS I AM NIGERIAN PRINCE I HAVE...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by nvpF1crazy:
    I think except for endurance, there are no...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Instead of spending more and more money on laboratory testing, why don't we...
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    Glad you found the problem.

    Glad you found the problem.
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    1,404

    How much clearance did you account for in your...

    How much clearance did you account for in your sprocket design? .14 mm (.005") really isn't a lot of clearance.
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    It's not that no one knows, it is that everyone...

    It's not that no one knows, it is that everyone knows!

    Roll axis effects on handling have been discussed many, many times. The people who frequent these forums are tired of answering the same...
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    You sure can. Why you would want to is beyond me.

    You sure can. Why you would want to is beyond me.
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    45 mm isn't that big. I've seen a lot of teams...

    45 mm isn't that big. I've seen a lot of teams run a pair of deep groove ball bearings on each corner. They had a much bigger diameter than you're posting.

    Also, 250 hours?!? most teams are very...
  17. Thread: cbr600rr

    by Hector
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    4,124

    There's more than one pump on that engine.

    There's more than one pump on that engine.
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    We got a sponsorship from computer hardware...

    We got a sponsorship from computer hardware company a while back. They gave us a large amount of money to spend through Dell. I specced out the station. We ended up with a Dell Precision T7400.
    ...
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    Snow is unlikely, but expect at least one day...

    Snow is unlikely, but expect at least one day where it is 40 degrees and raining. Dress in layers, because it goes from 40 and raining to 75 and sunny in about 2 hours.

    Anyways, there's no need to...
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    Open any high school physics book and you'll find...

    Open any high school physics book and you'll find the calculation. It's not hard.
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    Face mills have got to by my favorite. I love...

    Face mills have got to by my favorite. I love watching a good face mill send chips flying everywhere.

    My least favorite are hole saws. I like precise, clean tooling, of which a hole saw is neither.
  22. Thread: gear ratio??

    by Hector
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    2,107

    This is high-school level geometry.

    This is high-school level geometry.
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">I was thinking about milling them out of some billet, but that might be...
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    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Regarding "shock forces", how do you define those and quantify what shock...
  25. Thread: Chassis Design

    by Hector
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    2,850

    <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">3) A bent tube will buckle sooner than a straight tube
    </div></BLOCKQUOTE>...
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