Quote:
Originally Posted by Angel And The Wolf
I'm not sure you have the scales right, but, though the sport trailer will not add to your CDA, it will not help very much in reducing the drag on the rear of your SUV. The area enclosed in red is the drag area (low pressure pulling back on your SUV.) A trailor that more fully fills the profile area, and follows the taper at the rear of the profile, will much more reduce your drag. Any low pressure gap between your SUV and the trailer front would pull equally on the two, and the "suck back" on your SUV would be mostly compensared by the "suck forward" on the trailer.
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I put the picture of the Forester, and the picture of the trailer both into sketchup separately and scaled them using known dimensions. The trailer box measures 72", and I don't remember the Forester length off the top of my head, but I used the scale function in sketchup to model them to the right sizes. I'm not a sketchup pro either, but I *think* I got the scale pretty accurate.
Do you think I'd benefit the most from following the template with the tail, or getting the front of it higher up in the stream? If I designed it to be similar in profile to the U haul, I could also lengthen it some, and lengthen the tongue to get the tail of the trailer to match the template. In reality, I'll probably try to keep the front of the trailer down a bit so I can see over it in the rearview, but this conversation is helpful to me, as I think I would like to possibly also build a small camping/travel trailer in the future, possibly sort of plagiarized from the Basecamp. I'm 42, and I tented it for 21 days so far this summer, but I'm not sure I want to keep doing that forever!