Both Hamilton and Button raced the same wing spec at Monza which was similar to the Spa version used by Hamilton , despite the fact that they chose to use different front wing specs at Spa
The MP4/25 features a keel-less pushrod front suspension design with double wishbones . The steering axis is cleverly placed inside the lower front wishbone to reduce drag and offer a cleaner air flow towards the sidepods .
At slow and high downforce Hungaroring the team brought back the rear wing spec firstly presented at Spain which produces greater amount of downforce .
At Canada it was surprising to see Mc Laren keeping its Turkish rear wing version as teams traditionally reduce the rear planes chord in favor of achieving top speed at long straights. For sure Mc Laren’s revised F-duct system launched there helped the team to sustain a good top speed .
The rear wing introduced at Turkey regained the pre-Spain main flap profile with the leading edge at the central section to be raised up so as to divert more air under the planes (drag and downforce reduction by this configuration ). Furthermore the second flap had its chord being lengthened at its central section to gain some of the lost downforce . Apart from the former mentioned, the endplates slot-gills were also increased in number just like before the Spanish race .
Furthermore the wide inlet in the middle of the main plane and the two more additional smaller ones on either sides were rejected and as a result of it the second plane lost its additional slot at its rear surface in favor of a single shorthened one . Finally there was a new blowing slot of reduced length of the F-duct system, placed lower.
The new rear wing design is not “new” for Mc laren as it was extensively used during the past years time and it replaced the maximum downforce rear wing used at Monte Carlo . The new wing may produces less downforce but significantly less drag .
At Spain a new rear wing was introduced with revised planes and a new connection of the F-duct system’s tube to the wing . There is now a wide inlet in the middle of the main plane and two additional smaller ones on either sides (yellow arrows ) . These combo of inlets provide with air a slot extending up to all the plane’s width ( in white No 1 ) and help to prevent wing’s stalling in high speed and high attack angle . As a result the F-duct system’s tube connection point to the wing is now moved further up and shoots air to a modified also slot ( in black No 2 ) , placed above the previous mentioned one .
Lastly the endplate itself featured less slots to let less air bleed out of the wing favouring downforce production .
Mc Laren’s rear wing features the following major characteristics :
1.The main profile is bending upwards in its middle to divert airflow under the wing and not over, in an attempt to reduce turbulence around the connection point between the shark fin and the plane .
2.Single pillar to ensure wing stiffness
3.At the top of the endplate, there are multiple shark gills
4. Endplates have a deep cut at their rear upper part . That cut helps to reduce drag
5. Gurney tab , differs from the rest red plane as it is in black color