It seems that you can't have that kind of shape anymore because of the modification of the rule 15.4.4 :Blackout wrote:Can the orange part have an inverted 'U' shaped section ?
It would look similar to this kind of twin keel : P
http://www.farzadsf1gallery.com/image_u ... 03keel.jpg
http://i57.servimg.com/u/f57/14/79/55/26/unbena13.jpg
http://scarbsf1.files.wordpress.com/201 ... lkhead.jpg
Following the application of the permitted radii, the external cross-sections of the survival cell between the lines A-A and B-B must, over their respective minimum widths, have a minimum height of 300mm at the line B-B reducing at a linear rate to a minimum height of 225mm at the line A-A. Furthermore, no part of any external cross section of the survival cell in this area which lies more than 250mm above the reference plane may contain any concave radius of curvature.