Time Trial / Time Trialling / TT

That's interesting data- he'd need to repeat that test with the tyres swapped to make it meaningful though surely?

Otherwise it's possibly rolling resistance rather than aerodynamics.

If it is the case that a 50mm blunt-V is worse than a standard 24mm profile rim then it would be interesting to see why, preferably in the wind tunnel as you suggest.

Not necessarily. He might've taken that into account. Only bookmarked and I'm yet to read the whole thing.

You can do increasing speed tests to separate Crr and CdA
http://nyvelocity.com/node/3350