Quote:
Originally Posted by MetroMPG
I think it's more than just an extension - there's some plan & profile taper as well. It's subtle, but you can sort of see it in this pic (look @ the upper left corner & compare to trailer roof line) :
Of course, they haven't solved the problem of opening the doors fully... |
On the 1978 Renault V.I.R.A.G.E.S. the boat-tail planes came in at a 5-degree angle.They ran 16-inch panel and got Cd 0.308.Their drag table for the boat-tail shows that a 32-inch tail gets the drag to Cd 0.29.Not too shabby for a "10-wheeler".