Archive for the ‘C31 rear wing’ Category

Different set up for Sauber drivers in Australia


In Australia Sauber drivers preferred to race with  different car set up and different wing specs . Kobayashi raced with the higher downforce launch front wing spec and the additional beam mini plane that guarantee a more stable car especially when braking late , something suitable to Kobayashi’s  driving style and his appeal of overtaking . On the contrary Perez raced with the lower downforce front wing , that was first seen at Jerez on February,  having also the beam mini plane removed , a configuration  more appropriate to his “velvet” driving style which is to prioritize conservation of tires in good condition . The later is reflected on Perez different pit stop strategy to Kobayashi .


Pit stop strategy

Sergio Perez  Medium -Lap24 , Soft –Lap 34
Kamui Kobayashi Soft –Lap 13 , Soft –Lap 23  ,  Medium –Lap 22



Lastly Australian rainy weather was not enough and Sauber  run both cars  having the large engine cover funnel  .


Kobayashi beam mini plane in yellow , large engine cover funnel in red

Perez large engine cover funnel in red


Sauber C31 – Rear end improvements at Jerez test

mini plane on beam wing and floor supporters are shown in yellow

       To strengthen the stiffness of the diffuser and rear floor , Sauber  connected the later  to the rear crash structure via a pair of cable supporters . Their task is to eliminate possible vibrations that would potentially harm the aero behavior of the rear end . To even increase rear end stability an extra mini plane was added on the beam wing ( in yellow) .


Sauber C31 – Rear beam wing

February 24, 2012 2 comments

       Exhaust blown diffuser ban had a big negative impact on rear downforce production . Thus Sauber optimized as possible the rear zone  to gain some of the lost rear grip by making the rear zone even tighter and shorter  . One element that was redesigned carefully is the beam wing which has a more aggressive attack angle . That alone pushed the team to develop top mountings (in yellow) to clean from airflow disruption the lower pressure undersurface of the wing which is more sensitive and crucial for downforce production .The Sauber C30 of last season  had a more conventional configuration with the beam plane being connected from its under surface onto the top of the rear structure . Williams had last season an even more radical approach , a central mount-less beam wing which was only attached on the endplates .

      Top mountings is not something new and are already seen on other forms of racing and also on Marussia Virgin’s car the previous  season .



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