[kach22i]

Perhaps someone wants to take a risk and elaborate on how this central spline works, and what it is most similar to.

IndyCar to test aeroscreen at IMS on Wednesday
By: Marshall Pruett | October 1, 2019
https://racer.com/2019/10/01/indycar...morrow-at-ims/

.........to test visibility through the PPG-supplied material, and to provide feedback on any buffeting, chassis handling, cockpit temperatures, helmet lift, and a variety of other items on the series’ checklist................

...........gather chassis data and driver input on how lapping in turbulent air affects chassis stability, aerodynamic stability, cockpit airflow, etc................

“The 3D-printed titanium upper frame piece from Pankl itself is a work of art.

Of the new features present, a central spine is shown on the leading edge of the aeroscreen. The carbon-fiber piece, which aligns with the central spine on the nose and damper cover on the Dallara DW12 chassis, assists in stability when a driver is at a high degree of yaw..................

While there, Frye said Dale Coyne Racing’s Sebastien Bourdais, who is one of a handful of IndyCar drivers who wears glasses, will turn laps using the aeroscreen. The Frenchman is expected to report on the experience of driving while using prescription glasses, a visor, and the heavily curved aeroscreen, and offer any insights on whether the trio of items placed in front of his eyes provide any problems.