Home > Williams FW33 Cosworth > Williams FW33 – hot air exits

Williams FW33 – hot air exits


The FW33 has a very slim and short rear end  for aerodynamic reasons . Mechanics managed to keep the rear tight because of the new very compact gearbox and also by the way the exhaust blows and the hot air exits  from behind . In specific there are till now ( Valencia Test ) three slots to evacuate hot air , a pair spotted at  both cockpit sides (No 1) , one small triangular outlet where the engine ends (No 2) and lastly two quite large openings where the bodywork meets the gearbox exactly inside the floor exhausts (No 3) . The No3 outlets seems to work in conjunction with the exhausts as they blow hot air onto the diffuser roof central section while the exhausts onto the diffuser sides .

Of course it is Winter time and teams cope with chilly weather conditions . At hotter races like Bahrain and Malaysia more cooling options will rise for all teams  . I predict  for Williams  to enlarge the outlet No 2 a lot to blow a great portion of hot air between the wing flaps and beam element .

In red the exhaust

In orange the hot air outlets

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  1. BreezyRacer
    February 13, 2011 at 5:20 pm

    Those areas seem far too small in comparison to the other cars.

    It’s difficult to see any details above the diffuser but the CF tail section at the back of the sidepods and the just before the diffuser has a nice blending to the floor and I wonder if it is not open there, just above the diffuser deck. That would create a horizontal slot on each side of the tranny rather than just the vertical one you indicate. Those vertical slots seem awfully small to me.

    BTW, thanks for addressing this question.

    • February 13, 2011 at 8:47 pm

      The No 2 holes extend lower and horizontally having actually a L shape ,something not clear on the illustration and i find then large enough to keep temperatures reasonable low for now . Of course i say reasonable low because Barrichello at Jerez faced minor KERS cooling issues proving that Williams had to reconsider car cooling efficiency at hot conditions .

  2. Peter
    February 14, 2011 at 2:15 pm

    Here’s how McLaren simply changed cooling outlet size http://www.formula1.com/wi/597×478/sutton/2010/dmk1113fe163.jpg

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