https://www.f1analisitecnica.com/2019/0 ... liato.html
The track changed but the substance did not change: even at Montmelo the performance of the Ferrari SF90 was well below expectations. At Maranello they expected an important help from the updates brought to Spain, confirmed on both cars after the four hours of free practice, but unfortunately, even with the (obvious) denials, the aerodynamic innovations have not given the expected improvements. Especially the rear wing, analyzed with the Flow Viz even during the FP3 on Saturday morning, has underperformed compared to the data coming out of the factory. For this will be compared with the previous specification in the Spanish tests of today and tomorrow. On the contrary, at Mercedes, an important step forward has been taken thanks to the changes to the front wing and especially to the bargeboards that have allowed the Anglo-German Team to increase the rear aerodynamic load while maintaining an excellent balance of the W10.
As is well evident also in the first four seasonal GPs, in Barcelona the great Achilles heel of the Ferrari SF90 was the understeer in the middle of the curve; especially in the slow and medium/long ones that dominate the third sector of the Spanish circuit where Sebastian Vettel made up for a gap of 7 tenths from the Mercedes driven by Valtteri Bottas. A constantly slower SF90 at the centre of the curve for both Mercedes and Red Bull. 8 km/h at the Campsa, 7 km/h at the Banc Sabadell, 9 km/h at the Europcar and 8 km/ in approach to the chicane. A disaster.
What has intrigued many insiders and not, is the fact that the Haas VF19 has done virtually the same intermediate time mounting the same Power Unit and the same mechanics as the Ferrari SF90. A car designed in Italy (between Maranello and Dallara) that has an aerodynamic concept and a front aerodynamics very different from that of the SF90. In fact, the concept of the front wing is very different, always fundamental in a Formula 1 car, just as the turning vanes and the bargeboard area are different. Remember that aerodynamics must provide a constant and predictable amount of aerodynamic load at all times, without sudden changes. For a car to function at its best, it is important to have a good balance between how much the car pushes the front wheels to the ground and how much pushes down the rear ones. If the aerodynamics "does not push down enough", that is to say there are not the right kilograms of aerodynamic load, the car does not turn in curves and there is understeer. And the SF90 has some understeer to sell, alas.
In addition, the VF19 has a shorter wheelbase than the SF90, almost at the level of the shortest in the lot, the Red Bull RB15, and a less exasperated rake set-up. The lengthening of the wheelbase, keeping the rake levels (the angle has decreased but the wheelbase has increased and the height of the rear axle is similar) of last season, is creating some problems too much in Ferrari with deleterious shifts of the pressure centre. That is to say, the excellent balance between the front and rear aerodynamic load found above all with the SF70H and then maintained with the SF71H has disappeared. A single-seater is said to be balanced when the CofP perfectly matches the CofG centre of gravity (centre of gravity).
It was already said last autumn that the rake set-up was penalised with the introduction of the new regulations, but now the track also seems to confirm this (unfortunately for the show). Comparing the times set by the various teams in the third sector of Montmelò, it can be seen that even Red Bull, very fond of the exasperated rake set up, has also worsened (by almost 2 tenths). The times in which the RB14 managed to recover (in some cases even so much) precious tenths against Mercedes and Ferrari are far away. In this season, especially in the slowest corners, approximately below 110 km/h, the RB15 loses a lot of ground from the W10. With important problems, now partially solved, of oversteering out of corners. Conversely, at Brackley they have always designed low rake cars that seem to actually fit like a glove due to the new regulatory changes introduced this season. There was no need for that.
In conclusion, this year Ferrari has taken a rather aggressive path in terms of the car's aerodynamic concept in an attempt to bring the title back to Maranello. And already at the fifth race Binotto admitted that it could be wrong. He threw it there with the serenity that distinguishes him. As if at Maranello they had a clear idea of how to solve the car's problems. But to me, to date, unfortunately, it does not appear. I sincerely hope I am wrong. Because today you can't think of anything more than some sporadic victory on more congenial tracks (the first, Canada?) to the Low Drag aerodynamic concept chosen by Ferrari.
Tko je koliko izgubio u trećem sektoru u odnosu na prošlu sezonu (ili dobio vremena):
Brzine u zavojima (W10 vs SF90 vs RB15)
Uglavnom ono što se govorilo kada su došla nova pravila...penaliziralo je one sa rakeom koji su se dosta oslanjali na postojeći air flow sa starim krilima...i nismo trebali NIKAD pristati na nova pravila...Mercedesu je sa niskim rakeom to više pasalo i vidimo kako...
Ovo je i promašaj FIA-a i Ross Brawna koji su odlučili panično mjenjati pravila za ovu godinu nakon utrke u Australiji...i sada smo izgubili kakvu-takvu konkurenciju za prvenstvo.
Također one nadogradnje koje smo donijeli u Barcelonu (osim motora) nisu dale željene rezultate koji su se očekivali (iako Binotto kaže da su u skladu sa očekivanjima, ali da kao nije dovoljno)...
Ne vjerujem da se ovo može okrenuti u ikakvu pozitivu...kockali smo se sa agresivnim dizajnom koji očito ne paše ovim novim pravilima i izgubili smo. Bolid je dosegao svoj "zenit" tamo na testiranjima i nema više mjesta nekom napretku kako stvari stoje.