Quote:
- Rear aerodynamic device
The car’s original device must be removed.
One single device must be present. This device must respect the dimensions defined by drawing n° 2 and Appendix 3.
For two-volume cars, if the device is mounted on the top of the tailgate, the compliance with the 75 mm dimension is not mandatory.
This device must be rigid and offer no possibility for the penetration of air (groove, hole, opening, etc.).
The wing must be made in one single piece (a single profile and no adjustment flap in conformity with Appendix 3), and must be straight in all its dimensions.
The device must be totally contained within the frontal projection of the car without its wing mirrors.
The complete assembled device must be contained, together with its supports, within a box having a width of 150 mm and a height of 200 mm.
The maximum chord of this wing is set at 149 mm +/- 1 mm.
The distance “a” of at least 100 mm will be checked at 0° of incidence.
The maximum width of the single Be 183-176 type carrier profile (see Appendix 3)must not exceed 1200 mm and this profile may be adjustable.
A manufacturing tolerance of +/- 0.5 mm will be applied for measuring the profile.
This tolerance must be random between two consecutive measurements.
The trailing edge may have a thickness of 2 mm.
Attachment onto the glass is prohibited, only support is authorised.
The side plates may extend beyond 1200 mm, when seen from the front, but must not generate any aerodynamic force and must have a minimum hickness of 10 mm and a maximum width of 20 mm.
The wing should be checked with the car horizontal.
The wing supports must be defined as in drawing n°2.