This was the '07 test setup - first run with '07 wings. They did a second set of runs without bargeboards, and with the eventual '09 dimension wings and diffuser.
Because in the past some big teams have intentionally created dirty wakes to make life hard for other cars.
They still do.Because in the past some big teams have intentionally created dirty wakes to make life hard for other cars.
I will repeat what I said: Formula 3 cars have far less grip than Formula 1, yet the Formula 3 cars are far from spectacular when they race on wide Grand Prix circuits. They are rather dull actually: https://youtu.be/TK74SRy4QaA?t=1733
Thank you for these posts. Those pictures are interesting. Is this published info?
Makes sense. I can't imagine drag and df would ever be supplanted in development. I would think any kind of deterent wake would be way down on a priority list if at all.
I agree. The high g direction changes really are noticeable, for example on long distance views through a corner.
The importance of a big slipstream also diminishes. You take a good few turns get close and just stay close on an exit to a long straight. Some slipstream will always be present.
Blaze1 wrote: ↑08 Sep 2019, 18:24Ross Brawn has stated that the 2021 regs should allow a chasing car to maintain 90 to 95 percent of its downforce when within 2 car lengths of the car ahead. The direction of the airflow behind the leading will reduce the airspeed of the trailing car as it's essentially a tail wind or has such a component. For the 2021 cars to follow so closely I do wonder if this means the slipstream effect will be vastly reduced. If this is the case overtaking may still be extremely difficult, only the cars will be much closer together.
I also wonder what the figures are for GP2 cars in terms of downforce loss at a distance of two car lengths.
As far as I'm aware the results of tests were never officially published outside the teams (FOTA) and the FIA. These are the 2009 wings - note the '08 style endplates, so they were either unaware or disinterested in the outwash concept which came to dominate and was ultimately so detrimental as it evolved.
It's difficult to know, Brawn has said both that he doesn't want it but also that it is a necessary evil. The wind tunnel model and images released haven't have the actuator pod. We'll see come October when the rules are ratified and published.
I would say unaware, as Frank Dernie recollects having to lobby repeatedly for an outwash front wing to even be considered by the Toyota aero team. When it was finally added to the CFD test program, Dernie claims the outwash front wing provided the biggest gains seen in the regulations -- he considered it more powerful than the double-deck diffuser. The 2008 front wings tended to operate on the principal of in-wash IIRC.jjn9128 wrote: ↑09 Sep 2019, 11:25As far as I'm aware the results of tests were never officially published outside the teams (FOTA) and the FIA. These are the 2009 wings - note the '08 style endplates, so they were either unaware or disinterested in the outwash concept which came to dominate and was ultimately so detrimental as it evolved.
I hope not. It'll still be necessary around circuits like Hungary, Singapore, Barcelona, Abu Dhabi, Mexico City and a few others.holeindalip wrote: ↑09 Sep 2019, 10:37Blaze1 wrote: ↑08 Sep 2019, 18:24Ross Brawn has stated that the 2021 regs should allow a chasing car to maintain 90 to 95 percent of its downforce when within 2 car lengths of the car ahead. The direction of the airflow behind the leading will reduce the airspeed of the trailing car as it's essentially a tail wind or has such a component. For the 2021 cars to follow so closely I do wonder if this means the slipstream effect will be vastly reduced. If this is the case overtaking may still be extremely difficult, only the cars will be much closer together.
I also wonder what the figures are for GP2 cars in terms of downforce loss at a distance of two car lengths.
Will drs be gone for ‘21 regulations?