McLaren and Honda's power unit struggles continued in Malaysia, but the team haven't stopped bringing aerodynamic upgrades in an effort to move forward. In Malaysia, the Woking outfit introduced an 'S-duct' similar to that originally developed by Sauber and then copied by Red Bull and Force India. The only difference with McLaren's, is that it uses two outlets either side of the pitot tube housing (see below) built within the vanity panel (white), whilst their rivals use just the one. The aim of the 'S-duct' is to feed air from underneath the nose [1], by adding a duct under the nose, which is then fed through a channel [2] where it then exits over the chassis [3]. The main purpose is to...
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