tag:blogger.com,1999:blog-8518764871789529480.post9052053822907543163..comments2024-03-09T21:08:05.580+11:00Comments on Tales from the llama...: Aero Road Helmet Testing - Round 1 (Prevail, Evade, Melb Bike Share)Shane Miller - GPLamahttp://www.blogger.com/profile/12414261378362356188noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-8518764871789529480.post-17514795938796042232014-03-06T18:29:35.048+11:002014-03-06T18:29:35.048+11:00True, still doing a test in an indoor velodrome is...True, still doing a test in an indoor velodrome is more real-world than wind tunnel testing and certainly very applied. The advantage of a controlled environment is precisely that it allows to detect if the differences are due to the helmet or other confounding factors (mainly wind). As Stevo staid, adding the iBike measurements would be interesting but I still wouldn't trust it as much as testing in an indoor velodrome with known temperature, barometric pressure and relative humidity. I don't have a weather station, but would certainly get one for the sake of running these experiments.Jose Aretahttps://www.blogger.com/profile/13470299401857113970noreply@blogger.comtag:blogger.com,1999:blog-8518764871789529480.post-86111544292471609502014-03-05T12:23:03.440+11:002014-03-05T12:23:03.440+11:00Initially I'll keep it as real-world as possib...Initially I'll keep it as real-world as possible. Using just a power meter, open roads, and using a method that anyone with the same tools can do themselves. Tunnel time, CdA, etc is the true science.. but complicates the answer to the question - "What helmet is better?"<br /><br />Banked velodromes take a lot of skill to ride the banks/straights at a steady speed/power. I think the iBike option will be the next addition. Then if things progress I'll look into a DISC test.<br />Shane Miller - GPLamahttps://www.blogger.com/profile/12414261378362356188noreply@blogger.comtag:blogger.com,1999:blog-8518764871789529480.post-32632212601208789882014-03-05T11:25:31.612+11:002014-03-05T11:25:31.612+11:00Time to get the iBike out I think!! at least it is...Time to get the iBike out I think!! at least it is one more number to play with! it actually gives a Cda value.. Stephen Lanehttps://www.blogger.com/profile/07211645623242371825noreply@blogger.comtag:blogger.com,1999:blog-8518764871789529480.post-4755755711327874022014-03-05T10:35:40.250+11:002014-03-05T10:35:40.250+11:00Good stuff Shane. Have you thought of doing this a...Good stuff Shane. Have you thought of doing this at DISC? There is the possibility of calculating drag coefficient from speed/power in an indoor velodrome. I'm happy to collaborate on doing more testing in an indoor velodrome and workig out the numbers if you are interested :)Jose Aretahttps://www.blogger.com/profile/13470299401857113970noreply@blogger.com