First of all I want to thank the staff at the Stub Hub Velo Sports center for clearing the facility and making it possible to test most of the day on Saturday and all day on Sunday. Also a big thanks to Jim and Bryan from Ero Sports for going above and beyond the call of duty to help us pull this thing off.
The best thing I can do is to try to summarize over 140 runs by saying, you think know, but you really don't. We were constantly surprised by what worked for people. Often times what worked for one person would be much worse for others. We found a general trend in helmets and ones that tested consistently well across the board. However, the best helmet for me was not what worked best for Brian.
Some rules of thumb, position trumps all. Two of the camper lost nearly 45 and 67 watts of drag just due to position alone. Next would be helmets and then clothing. After personally seeing a nearly 18 watt drop I think that clothing is really the next frontier. Again it has to fit well, otherwise the needle moves in the opposite direction. Hydration was interesting as well. Some products work better on some frames than they do others. Big round straws are bad and a BTA bottle generally was neutral.
I'm sure I'm leaving out a lot of stuff and those that attended will be able to chime in with their own data. Personally I'm happy to share mine and I'm sure Brian will be too.
My CdA went from .2643 down to .2267
The story on the front page is here:
Just a note to the aero geeks, I can speak in CdA but for most people watts seem to work better. I am all for getting people to think in CdA though.
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AeroCamp February 25-26, 2020 A2 Wind Tunnel