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#11
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"Philip W. Moore, Jr." wrote in message ... Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. I've read some numbers before, but I think it's like the numbers I've read about Lance's chances of surviving his cancer. One interview it was 20%, the next it was 50%, etc. Bob C. |
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#12
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Brenton,
Coming from me that might actually be a reasonable thought! -Philip "Brenton James" wrote in message ... After reading the title, I honestly thought this was going to be politically oriented... "Philip W. Moore, Jr." wrote in message ... Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. |
#13
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Brenton,
Coming from me that might actually be a reasonable thought! -Philip "Brenton James" wrote in message ... After reading the title, I honestly thought this was going to be politically oriented... "Philip W. Moore, Jr." wrote in message ... Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. |
#14
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"Philip W. Moore, Jr." writes:
Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. I cited some research on this a couple of months ago: http://groups.google.com/groups?selm...imensional.com -- Michael Fuhr http://www.fuhr.org/~mfuhr/ |
#15
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"Philip W. Moore, Jr." writes:
Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. I cited some research on this a couple of months ago: http://groups.google.com/groups?selm...imensional.com -- Michael Fuhr http://www.fuhr.org/~mfuhr/ |
#16
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Dumbass -
It depends upon speed, direction of the wind, etc. etc. The faster the speed, the greater the % savings in the draft. Riding an echelon in a crosswind gets more protection than riding on someone's wheel right into the wind. The body (not the bike or wheels) has the most drag and in an echelon you can get your body right next to whomever is breaking the wind, thus the drag savings are greater. So it varies, depending upon the situation. There is no definitive answer. K. Gringioni. |
#17
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Dumbass -
It depends upon speed, direction of the wind, etc. etc. The faster the speed, the greater the % savings in the draft. Riding an echelon in a crosswind gets more protection than riding on someone's wheel right into the wind. The body (not the bike or wheels) has the most drag and in an echelon you can get your body right next to whomever is breaking the wind, thus the drag savings are greater. So it varies, depending upon the situation. There is no definitive answer. K. Gringioni. |
#18
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"Raoul Duke" wrote in message ...
" Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. Funny you should ask. Outside magazine recently published a brief article on the effects of drafting (the recent issue with Gabrielle Reece on the cover). According to the article, the second rider in line gets a 17% advantage, the third rider a 38% advantage, and the fourth a 40% advantage (assuming a race pace). Interestingly, the article claims the lead rider gets a 3% advantage because the second rider breaks up the drag vortices behind the lead rider. The lead rider gains 3% thing has been bounced around for a while. I think the concensus is that it acts like the tail-cones you see on a lot of the european tractor/trailers and eases the airflow so that it does not create low-pressure behind the rider. -a |
#19
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"Raoul Duke" wrote in message ...
" Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. Funny you should ask. Outside magazine recently published a brief article on the effects of drafting (the recent issue with Gabrielle Reece on the cover). According to the article, the second rider in line gets a 17% advantage, the third rider a 38% advantage, and the fourth a 40% advantage (assuming a race pace). Interestingly, the article claims the lead rider gets a 3% advantage because the second rider breaks up the drag vortices behind the lead rider. The lead rider gains 3% thing has been bounced around for a while. I think the concensus is that it acts like the tail-cones you see on a lot of the european tractor/trailers and eases the airflow so that it does not create low-pressure behind the rider. -a |
#20
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"Philip W. Moore, Jr." wrote in message ...
Can anybody quantify the advantages of drafting in terms of reduced effort while riding in the pack, whether in line or in an echelon? I was asked this question by a mountain biker and could not answer it. Pretty easy to see why it would be hard for you to describe the sensation. Considering you are the WORLDS LARGEST FRED, and probably can't keep up with the local bicycle touring clubs ice cream social rides, let alone any competitive level training ride. And for the fact that the longest you ever stayed in any draft was the first lap of the Dallas Morning News city criterium citizen's category. And the closest you ever got to an actual working echelon was watching WCP Spring Classics DVD's while polishing your bike. cp |
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