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Williams FW31 - rear brake ducts

This season brake ducts have became more and more like aerodynamic devices. Examples can be seen in Abu Dhabi on the Williams, with these two little wings (1) attached to a vertical fin, and two vortex controllers (2) attached to the long endplates of the diffuser. This trend is likely to increase...

Williams FW31 - modified brake ducts

As also noted in the Toyota illustration from Japan, brakes ducts are increasingly serving a role as aero devices. At Suzuka, Williams introduced this solution, featuring a mini-wing (red arrow) with two vertical endplates to increase front downforce.

Williams FW31 - revised front wing

On Friday at Istanbul Park Williams introduced a new front wing. Similar in style to the Brawn's, it features double end plates, which divert the airflow away from the front tyres. Also new is the upper flap, which now features a slot in the middle of the plane, while the main flap now has two...

Williams FW31 - revised rear wing

Perhaps surprisingly for one of the three original double-diffuser teams, Williams have taken the lead from a single-diffuser team (Red Bull) with this revision to their rear wing in Bahrain. As on the RB5, the endplates now come down to meet the outer walls of the diffuser. In doing this they have...

Williams FW31 - rear diffuser 'hole'

From this angle you can clearly see the controversial opening (in yellow) in the protested Williams diffuser. This brings more air into the central part of the diffuser, allowing it to work harder to increase downforce. Most rivals believe this hole to be against the spirit and/or wording of the...

Williams FW31 - revised nosecone splitter

Williams have brought to Melbourne a modified version of the nosecone splitter (see red arrow) first seen during pre-season testing at Barcelona. Positioned low down on the nosecone, the revised part better directs the airflow through the lower part of the car to feed the diffuser's central section....

Williams FW31 - vertical 'skate' fins

With the 2009 regulations bringing so many changes, teams are inevitably investigating every avenue in a bid to find potentially beneficial loopholes. Williams have utilised this area immediately surrounding the cockpit - an area unrestricted by most bodywork regulations - to add new vertical fins,...

Williams FW31 - rear diffuser design

Like engine suppliers Toyota's, Williams' interpretation of the revised diffuser regulations is highly innovative. Much of the diffuser's central section is actually lower than the outer sections. However, clever shaping of the rear crash structure immediately below the rear light effectively...

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