View Single Post
Old 01-30-2012, 01:04 AM   #187 (permalink)
Sven7
Master EcoModder
 
Sven7's Avatar
 
Join Date: Aug 2011
Location: Warren, MI
Posts: 2,456

Boo Radley - '65 Ford F100
90 day: 13.28 mpg (US)
Thanks: 782
Thanked 665 Times in 408 Posts
So, I've been thinking about a boattail. The issue is the top airflow. The rear of the car has a little notch and lip. You can see it here.


IMG_4459 by Tyler Linner, on Flickr

The question is: when building a boattail should I treat this area any different than a normal hatchback, or will the beginning of the boattail, coming off the lip, have to respect some aero effects of the lip? I ask this in case the lip acts as a spoiler, and if putting something behind it will somehow disrupt it. I can tuft test this later but thought I'd ask now to have a little thinking/planning time.

(The rear of the car has attached flow all the way until said lip. I plan on extending the sides and bottom as well, perhaps two feet or so, to create an open ended partial boattail.)
__________________
He gave me a dollar. A blood-soaked dollar.
I cannot get the spot out but it's okay; It still works in the store
  Reply With Quote