B
Bill Z.
Guest
"Just zis Guy, you know?" <[email protected]> writes:
> On Sun, 26 Sep 2004 19:04:01 GMT, "Tom Kunich" <[email protected]>
> wrote in message
> <[email protected]>:
>
> >It is very clear that you are clueless. Why would anyone wear a helmet that
> >increased his aerodymanic drag if that was a consideration, instead of
> >simply putting on the tight rubber cap?
>
> Amazingly, Bill's trawl of the web for helmet aerodynamics references
> missed this from arch helmet zealots BHSI (Motto: "Don't confuse them
> with the facts"):
Oh please. You or your anti-helmet friends have gone on record
numerous stimes calling the BHSI web page a bile or garbage. If
I had quoted anything from it, you'd have complained.
You didn't even understand what it said. E.g.,
> But even if they do have foam, aero helmets don't save any appreciable
> drag until you get to competitive cycling speeds--over 20 MPH at
> least. Most cyclists don't ride that fast and do not need the aero
> effect. And that aero tail sticking out the back might snag in a crash
> and jerk your head."
All he's saying is that the more extreme designs don't save you too
much energy at low speeds because air drag increases nonlinearly
with speed. He didn't say a helmet only reduces drag at high
speeds. He said that the effect is too small for most cyclists
to notice, which is what I said in my original message.
--
My real name backwards: nemuaZ lliB
> On Sun, 26 Sep 2004 19:04:01 GMT, "Tom Kunich" <[email protected]>
> wrote in message
> <[email protected]>:
>
> >It is very clear that you are clueless. Why would anyone wear a helmet that
> >increased his aerodymanic drag if that was a consideration, instead of
> >simply putting on the tight rubber cap?
>
> Amazingly, Bill's trawl of the web for helmet aerodynamics references
> missed this from arch helmet zealots BHSI (Motto: "Don't confuse them
> with the facts"):
Oh please. You or your anti-helmet friends have gone on record
numerous stimes calling the BHSI web page a bile or garbage. If
I had quoted anything from it, you'd have complained.
You didn't even understand what it said. E.g.,
> But even if they do have foam, aero helmets don't save any appreciable
> drag until you get to competitive cycling speeds--over 20 MPH at
> least. Most cyclists don't ride that fast and do not need the aero
> effect. And that aero tail sticking out the back might snag in a crash
> and jerk your head."
All he's saying is that the more extreme designs don't save you too
much energy at low speeds because air drag increases nonlinearly
with speed. He didn't say a helmet only reduces drag at high
speeds. He said that the effect is too small for most cyclists
to notice, which is what I said in my original message.
--
My real name backwards: nemuaZ lliB