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