BMMR61 wrote: ↑30 Jul 2023, 13:53
LionsHeart wrote: ↑30 Jul 2023, 12:08
Well, here's what we're talking about: in this package, the car is more efficient and balanced. The low downforce package is not ready now, and the one from last year is not effective.
During practice, Oscar rode with a loaded beam wing, and Lando with an unloaded one. By the time of qualifying, both of them had a loaded beam wing on their car. Let's just say the team deliberately went down this path, although they could have chosen a less busy beam wing for Oscar.
I once listened to the analysis of one person, he said that if earlier McLaren had problems in turns up to 140-150 km / h, then with updates this threshold was reduced to 80-100 km / h. That is, slow corners remain an Achilles' heel as well as low top speed on straight lines, but in slow corners that are passed over 100 km / h, there are no such serious problems as before, but if the turn is slower than 100 km / h, then problems remain. Stella talked about these problems in chicanes before the weekend.
Thanks Lionheart. Could you summarise for us what a loaded beam wing is and it’s aero properties?
There are always pros and cons. I would prefer a less loaded wing with a lower angle of attack and less wing area. It reduces drag, increases top speed. Here at the Spa it would help us a little, but there is a downside. The efficiency of the diffuser will be less because the pressure difference below and above the bottom will be less. A loaded beam wing allows you to increase the efficiency of the diffuser, you can call it a continuation of the diffuser body.
The most logical option would be a loaded beam wing and an unloaded rear wing so that the efficiency of the diffuser compensates for the lack of downforce from the rear wing. But here I do not take into account the overall aerobalance in turns and braking, especially the balance is important at the entrance to the turn, where the feed must have a reserve with a margin, otherwise there will be a skid and unnecessary steering adjustment.
On Thursday, when I saw one of the teams which rear wings brought, it became clear that McLaren would be fast in the second sector. I noted it and other people here also noted it. I have no idea what the race pace will be. McLaren's only chance, faster tire progression, better wear control due to less slip, a lot of win back in the second sector and hope that there will be no space losses in the first and third sector.
Spa is complicated by the fact that here you always have to choose a compromise. And the team decided: since our car is not as effective on the straights as the rivals, let's give them a fight on the second winding section. Well, half an hour is left before the race. Let's see how things turn out.