Jersey Tom wrote: ↑08 Jun 2017, 19:51
I'd wager that "shark fins" - be they on LMP or F1 cars - create an appreciable amount of sideforce. Though on those platforms I'm sure there's also significant interaction with other aero elements.
Open wheel and sportscar aero isn't in my world of experience.
Seems like it would be the case. The net effect, whether it increases downforce or cornering speed, is an open question for me. Intuitively, the prevailing airflow will be pushing outward on the fin (unless surficient yaw angle is achieved) while driving through the corner, which seems like the opposite direction of the sideforce you'd want.
Jersey Tom wrote: ↑09 Jun 2017, 04:23
Greg Locock wrote: ↑09 Jun 2017, 02:48
I forgot side force. Well that's different. To get more side force you'd need vehicle oversteer, ie nose in. To get that from the rear axle via roll or compliance steer is exactly the most horrible thing you can do to the stability of the vehicle, and steering feel.
And it wins championships
All at or near 200mph. Seems like steering the rear this way would be detrimental to the tires. Yes/no? But manageable obviously if people are winning with the strategy.