JaxDad wrote:
On he contrary, any improvement in the aerodynamics of a ‘brick’ result in pretty substantial gains. Bear in mind also that as speed increases the drag does NOT increase proportional to the gain. According to Bernoulli's equation, drag is proportional to the SQUARE of THE speed.
Look up “AirTabs” and the gains that can be made by just adding some little plastic stick on tabs to a ‘brick’ and changing the vortices that form BEHIND it.
It's a FREAKING BRICK
There is NOTHING you can aerodynamically change to a FREAKING BRICK to get a 20%+ fuel economy improvement, NOTHING.
Bernoulli at 65MPH? Seriously? We're not talking about radical changes to trailing airflow, you're suggesting a slight change to turbulent airflow underneath will have a 20% improvement in fuel economy.
