I wanted to assess claims that Mclaren have switched to a TD compliant front wing. I made gifs showing the car at top speed entering a braking zone. In order to draw the correct conclusions, it is necessary to evaluate the wing under the same operating conditions. The wing spec (high or low downforce) must be similar and the speeds must be similar. That is done to ensure that the wing experiences similar aero loads. Without similar loads, the comparisons are invalid as they are not like for like. For example, a low downforce wing can't be compared with a high downforce wing and deflection when braking from 300km/h down to 100km/h can't be compared to that between 330km/h and 80km/h.
These gifs (Except Imola) are all done braking into low speed corners (70-80kmh) from a top speed of ~330km/h.
COTA 2024:
Abu Dhabi 2024:
Bahrain 2025:
Miami 2025:
I'm breaking a rule by including Imola (braking into a higher speed corner than the others), but it's still interesting as the wing still moves quite a bit.
Imola 2025:
It could be a trick of the cameras angles year over year, but from here it seems like the upper flap element was slightly larger last year. It could also be down to flap angle adjustments, but I feel it's a consistent observation in multiple races where that wing spec was used in 2024 (also looked at Spain '24 where flap was large). Las Vegas had lots of flap trimming for top speed.
If that uppermost flap is smaller this year in the medium/high downforce spec, it's also difficult to conclude if that was done because Mclaren simply wanted less drag/load from the front, or if it's the result of intending to run a stiffer wing. If intent was to make it stiffer, then they could have chosen to reduce the size of that upper flap to cut load and drag since it won't flex as much but the difference in flex is minimal. Considering that 2025 fw appears to have a slightly smaller upper flap, then it's range of motion is still quite large and I don't think that this wing is compliant with TD018. Load reduction is not the same as stiffness. It was also demonstrated earlier in the thread that the Mclaren wing is moving much more than Merc's TD018 compliant wing.
Red Bull's wing for this year also clearly moves more than last year. I don't think their front wing is TD compliant at the moment either. As has been said by several team bosses already, everyone will have to bring stiffer front wings to Spain.
It doesn't turn.