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Tech Talk: Williams engine gills and roll-hoop wing

Williams introduced a couple of notable upgrades at the last two races in Germany and Hungary, which we'll take a brief look at in this article. The top image shows a new slotted shark-fin engine cover aimed at increasing cooling of the power unit. The slots have been seen before in previous seasons, but never as elaborate. This development is in response to the tighter restrictions surrounding gills, louvres and chimneys. With much of these banned, teams are having to find more inventive ways of cooling the car without increasing drag substantially. Williams solution creates a tiny amount of drag as the slots draw heat out of the power unit compartment, rather than relying on air...
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