From Part 1: ...A handful of prototypes from those contenders were created, which would be packed and travel from Treviso to Immenstaad for the next phase: prototype testing.
PROTOTYPE TUNNEL TESTING
In this round of testing, variations of a new helmet were placed on a headform (and torso) within the Immenstaad wind tunnel in Germany. The helmets were tested in four yaw sweeps out to 20 degrees, gathering both aerodynamic data, but also that all-important cooling data.
“It was truly unique to be able to measure both drag forces and cooling effects across a range of yaw angles,” Ballard said. “We were able to gather a lot of fantastic data, calculating both the speed of the helmet with the frontal vent plug in and out, as well as quantifying cooling in a measure of watts with the vent plug out. It’s a mix of data we’d never seen before, but made for data that helped the Rudy Project team in their design considerations, to make it fast, but provide a significant level of cooling that wasn’t a detriment to the speed of the helmet.”