Updates for Spa...
![Image](http://img703.imageshack.us/img703/7540/24898551.jpg)
I've switched to an EBD now as that seems to be the most efficient. To balance that extra DF there is a new front wing extending the flaps over the endplate more and curving down into the footplate. These increase airflow under the wing and therefore DF.
![Image](http://img684.imageshack.us/img684/7233/spliter.jpg)
Theres a new splitter. Its quite chunky as radiator air exits from hole in the side of it and flows under the floor.
![Image](http://img850.imageshack.us/img850/306/rearfloor.jpg)
I've added fins to the RW endplates to lower drag behind the wheels.
![Image](http://img535.imageshack.us/img535/1218/42493702.jpg)
The Spa spec wing is low AoA but starts the first plane at the normal point, finishing much lower and being more efficient as a result. Also got a minimum sized flap and slot in the centre. Didn't see much point in having endplate slots cause of such low AoA. You can just see the double beam wing with the slit in its support. This slit feeds a slot beneath the wing to increase downforce. You can also see the big scoops on top of the rear floor. They reduce drag on the rear wheels and also send more air over the diffuser and feed the brake ducts. Am worried that they are too big for the rules however.
![Image](http://img580.imageshack.us/img580/2262/diffuser.jpg)
My personal diffuser innovation is the inward blowing exhausts. The gasses are aimed inward so they blow across not one vertical section but two on each side giving an extra vortex per side and more DF.
The slots in the body above the gearbox feed the diff and gearbox rads around the 'box and exit through the starter motor hole.
The nose (see earlier posts) has a roughly wing shaped cross section near the tip which should give some DF in really tight corners.
Bargeboards now fit tighter to the undercut since there is no exhaust parts and turning vanes behind it and should improve top speed.
Front wing supports flex, having a similar effect to RBR's flexy nose. As far as I know they aren't tested and therefore the flex could be very major. There is a slot like Mclarens as well that only starts to move at very high speed.
Also thinking about a flexible rear floor. If the outer edges could flex down and help seal the floor (like what Renault did with FEE) it should boost DF and speed. Don't know of any tests on this part of the floor.