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-   -   Ducktail or Rear Spoiler on HX? (

PAFirefighter11 01-14-2014 01:56 PM

Ducktail or Rear Spoiler on HX?
Have any of you with an HX done a small-ish ducktail or a roof spoiler and seen any gains in FE? Photos?

Is this worth looking into?


kach22i 01-14-2014 02:23 PM

My best guess is that detachment of air occurs about middle of the rear window.

If this is the case, a mid window foil or spoiler would work best.

If you use this proposed spoiler at the top of the window, you may be missing out and increasing the drag.

Try to find yourself a similar coupe in wind tunnel images thread so you can see what I mean.

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