Re: Great wheel test 2008
Ivo napisał(a):
> "ujemny współczynnik oporu"-no jasne,z wbudowanym silniczkiem
> http://www.therapyproducts.com/images/bike_lg.gif
A tam:
"The first wheel to...
rozwiń
Ivo napisał(a):
> "ujemny współczynnik oporu"-no jasne,z wbudowanym silniczkiem
> http://www.therapyproducts.com/images/bike_lg.gif
A tam:
"The first wheel to achieve negative drag. WOW! Combined with Zipp&s Tangente tire, this wheel will actually push you forward under certain circumstances. At 15° (so called sweetspot), which is the most likely angle your wheels will have to the wind, the sub-9 achieves a -80 grams drag reading."
http://www.rouesartisanales.com/article-12178331-6.html
"Sub9 bulge disc --a flat disc with a lenticular bulge for the last few inches of rim depth-- that recorded the first ever true negative drag in the wind tunnel. as proven by both 0-to-30 testing and 30-to-0 protocol. At a 15 degree yaw angle, when normalized to 25mph, the Sub9 showed a reduction in drag equivalent to 11W of forward thrust; roughly equivalent to a mile an hour advantage"
Wydaje się nieprawdopodobne, a jednak ;)
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