In recent seasons the actual shape of helmets has gradually evolved, as more aerodynamically efficient shapes are brought into use. Sitting directly below the main engine air intake, helmets are increasingly shaped to assist in the process of reducing drag in this notoriously high-turbulence aerodynamic area. The modern designs also reduce the lift produced by more traditionally shaped helmets - which can be anything up to 15 kg at racing speeds.
The helmet design must also provide ventilation for the driver. This is achieved through the use of various small air intakes. To prevent small particles of track debris entering the helmet these intakes are equipped with special filters.
Despite the cutting edge materials used in their construction Formula One helmets are still painted by hand, an incredibly skilled job requiring hundreds of hours of work for more complicated patterns and designs. And most drivers will go through several helmets during the course of a season.
The FIA has currently commissioned work for the development of a next generation 'super helmet' for Formula One racing, intended to improve safety standards still further, especially in conjunction with the now mandatory use of the HANS (Head And Neck Support) system.
Hockenheim 2004.ginsu wrote:
I like this style as well. The lip on the bottom edge functions as a splitter helping to keep the helmet secured to the drivers head. I'm sure you all remember (2003?) when Jenson had to drive with one hand on the wheel, the other holding his helmet down after one of his helmet straps had come loose during the race. His helmet was getting 'sucked' up and choking him. I believe this is due to the low pressure generated as the air follows the curvature of the helmet. A splitter creates a high pressure region that should cause a net downforce on the helmet. Jenson sits so high up in his seat he may want to think about these helmets.