Thread: Round 6: The 99th Indianapolis 500
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Old 17 May 2015, 19:04 (Ref:3538651)   #72
bjohnsonsmith
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Originally Posted by FLGTFAN View Post
The flat bottom is just too large. If you put a sheet to the wind, it's going to fly.
The surface area of the undertray was reduced by putting 'holes' in it just behind the leading edge of the undertray, as in this photo. There's a whole article on Racer.com about it. http://www.racer.com/indycar/item/10...kits-new-floor

I can't help but think these 'holes' are a contributing factor. They weren't there last year, or the two previous years, since the introduction of the DW12. If the rear of the car rises up due to impacting the wall, there's nothing to stop the air rushing through these holes and along under the undertray.
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