Quote:
Originally Posted by Hauki
Hi, I know this has been discussed a lot, and I have searched almost every post on here but I have yet to find many good designs that would significantly reduce aero. I know a guy in Valencia (sorry forgot your username) has some awesome designs/ideas. I have been toying with some designs using the classic tear drop shape template C and this is what I have come up with.
Attachment 11158
Attachment 11159
Access would be via a hydraulic assisted opening at the rear.
My main question is, I don't want to taper off completely, I want a sort of boat tail, how much will this impact? Reason being the more I can chop off the end, the bigger opening I can have, which is pretty important as it is a cargo trailer.
If anyone else has done the same sort of idea, or has actually got around to building they're aero trailer and has fuel figures please chime in.
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If you'll do a Search EcoModder for 'Full-boat-tail trailer' and go to page 25,#248 permalink you'll find some pictorial drag tables which will show the impact of edge radii.
For my trailer projects,the most recent,with the gap-fillers,has registered the highest ever mpg for the towing vehicle.
Without the trailer the highest-ever mpg was 39.With the trailer,I've seen as high as 47.8,at 65 mph.The trailer weighs over 700-lbs (318 kg).
The trailer is yet incomplete and may perform a bit better if I can ever finish it.
I'm very encouraged with results so far.I think that you'll like yours.