Quote:
Originally Posted by hotrodf1
Sorry, just to confirm here.
The % all relate to "full" length tail, which is the 1.78X relationship right? And the X is the height of the trailer in this case? If trailer is 85" high or so, than a full tail is 151.3", a fairly "healthy" length. So the 50% is then 75.5 or so long.
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So if you look at my chart, and you went 30% longer or 45 inches, you'd gain a 51% decrease in your Cd. Not too shabby Scoobie Doo. The biggest gains happen as soon as you start adding anything.
Of course all these numbers assume you're dealing with an ideal type shape to begin with, the variables are daunting to try and accommodate, but still, even if you only got half of 50%, you're still looking great. Well worth the effort because the gains are very significant.