Williams FW31 aero-mech development in 2009

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GP AUSTRALIA



Undergone changes from Launch and Winter testing time
1.Thinner and higher nose cone
2.Nose cone end hole
3.Undernose channel
4.Front wheel rim shields
5.Airbox side winglet
6. Different sidepod panels
7.Different mirrors
8.Reshaped sidepods
9.Smaller exhaust outlets
10.Rear brakes winglets
11.Rear wheel rim shields
12.Rear Wing
13.Differenty diffuser
14.Livery change





To my good friend Carlos

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FRONT WING - AUSTRALIA







1.2009 regulations command that the central part of the front wing (500mm width ) must consist of a single element and must also conform exactly to the thickness and chord specified by the FIA .
2.Vertical nose pillars
3.Low height vertical fence
4.Extra winglet with an endplate
5. The endplate curve outwards to direct air around the front wheels.
6.Τhe outer extremities are bending slightly upwards to create a gap between the wing profile and the ground in order to reduce the pitch sensitivity of the car at high speed
7.Vertical fence under the wing to better direct airflow
8. Horizontal extension of the endplates , reduces front wing’s pitch sensitivity

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REAR WING - AUSTRALIA


Only minor changes occurred from Launch time such as the flap connecting elements ( double connections instead of the central one )








NOSE CONE - AUSTRALIA


Thinner , and higher nose cone end with taller nose connecting pillars





NOSE CONE END HOLE - AUSTRALIA


Honeycomb style inlet . Hexagons provide the best structural design with the optimum available inlet surface

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NOSE CONE CAMERA WINGLETS - AUSTRALIA


There is a winglet attached on either side of the nose cone, able to house a camera . During winter testing those winglets were randomly used .






SIDEPOD PANELS - AUSTRALIA


Different sidepod panels




EXHAUSTS - AUSTRALIA

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NOSECONE SPLITTER - AUSTRALIA


A short of venture channel is created under the nosecone which helps to increase air speed towards the lower part of the car .








MIRRORS - AUSTRALIA


The mirror’s mounting is now positioned lower and is much flatter , so as to be capable of guiding airflow towards the radiators inlets and the rear of the car

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DIFFUSER - AUSTRALIA

Australia


Double Decker Diffuser
1.Double air deflectors
2.Vertical fence
3.Three channels
4.Central channel
5.Second upper central channel
6.The rear wing’s endplates are connected with the diffuser via flat vertical fences









Portimao January testing

1.Inclined profile with a vertical fence
2.Two channels
3.Central channel
4.Second upper central channel

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FRONT WHEEL RIM SHIELDS - AUSTRALIA





REAR WHEEL RIM SHIELDS - AUSTRALIA


Williams developed further the complicated rear wheel rim shields presented by Toyota TF108 last year . The shield , made of carbon , is consisted of small identical aerofoils which allow hot air to escape from the wheel .




REAR BRAKES - AUSTRALIA


1.Double inlet , the large one for cooling the brake disc and the other smaller one for cooling the braking system itself .
2.Winglets

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REAR LIGHT





AIRBOX CAMERA WINGLETS - AUSTRALIA




During winter testing the side winglet was not always used

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GP MALAYSIA


Undergone changes from Australia
1.Different front wing’s endplates



FRONT WING - MALAYSIA








REAR WING - MALAYSIA





NOSE CONE END HOLE - MALAYSIA



No change




SIDEPOD PANELS - MALAYSIA

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EXHAUSTS - MALAYSIA








AIRBOX CAMERA WINGLETS - MALAYSIA





DIFFUSER - MALAYSIA





FRONT BRAKES - MALAYSIA







REAR BRAKES - MALAYSIA

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GP CHINA


No changes




FRONT WING - CHINA









REAR WING - CHINA





NOSE CAMERA WINGLETS - CHINA

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BARGEBOARDS - CHINA

Very low bargeboards compared to other teams designs



SIDEPOD PANELS - CHINA

No change



EXHAUSTS - CHINA




DIFFUSER - CHINA

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GP BAHRAIN


1.Different style front wings for Rosberg and Nakajima
2.New longer rear wing’s endplates only for Rosberg





FRONT WING - BAHRAIN









REAR WING - BAHRAIN


New longer endplates only for Rosberg

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NOSE CONE END HOLE - BAHRAIN

No change




EXHAUSTS - BAHRAIN





DIFFUSER - BAHRAIN


The new longer endplates , only for Rosberg , come down to meet the outer walls of the diffuser. In doing this they have slightly reduced the total width of the diffuser's side channels

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GP SPAIN


1.Rosberg had his mirrors placed away from the cockpit zone
2.Larger sidepod panels
3.Nakajima used the new rear wing’s longer endplates
4.Hell energy drink sponsorship
5.New front wing’s endplates for Nakajima







FRONT WING - SPAIN








REAR WING - SPAIN


Nakajima used the new rear wing’s longer endplates