@aerohead #46,
Could you please put that into simple language so we all can understand? Your good points are very difficult to visualize.
Basically, what I have learned about a round shape going thru the air is that the fairly aerodynamic front is offset by they very unaerodynamic back side, therefore negating any beneficial affect. A Borg sphere in space has no such effect upon it since it is in a vacuum. One must assume that the ideas you put forward are having to do within atmospheric situations.
Also, once we have the test done, ie; by MythBusters, then the observable facts have been presented for all to see. The idea presented by Grant-53 must have his definition basis in observation. At this point we do know that dimples in a car body surface do increase fuel economy since we have all observed it.
If we feel that there is something missing in the given test, then it should be pointed out. If we feel that there are other things in the test making the fuel economy better, then they should be pointed out.
Short of that, the average person should be able to rely upon the fact of the fuel mileage improvement as demonstrated. If we overthink everything, we will never move forward.
