marcag wrote:
The problem was nobody had any appreciation for what .20 was.
People didn't even understand what was better .2 or .3.
How about this?
Quote:
"CdA is also called 'drag area' and is usually measured in square meters. An excellent CdA for a normal-sized rider in a TT or Tri position would be around .20 m^2. A fair CdA would be around .28 m^2. An A4 or letter-sized sheet of paper has an area of right about .06 m^2
A 3x5 index card has an area of around .01 m^2.
If someone else has a CdA of .24 m^2 and you have a CdA of .25, it's like you have a 3x5 index card worth of extra area to drag around, everywhere, all the time. Getting you from a fair CdA of .28 down to a very good one of .22 is like dropping a sheet of paper. "