Clubman Classics is a personal blog inspired by the fearless, amateur road racers who competed in the 1947 - 1956 Isle Of Man Clubman's TT races and their production based machines.

Saturday 30 October 2010

The Brooklands Can

It is widely known that the legendary fishtail shaped exhaust muffler or 'Brooklands can' was orginally designed in the mid 1920s to reduce the noise of bikes and cars racing at speed around the Brooklands banking as many people lived in close proximity to the track. As is often the case, function determined form and the shape of the silencer was born.

Source: Cast alloy example from Vintage Supplies

Lack of experience with silencing in pre war times meant they were not particularly effective, the slanted rectangle design consisted of a large open chamber with partitioned entry and exit pipes. However, the recognisable sound given off by a Brooklands can meant it was adopted by many racers and owners for cosmetic purposes and to obtain the fashionable Brooklands rattle. Nowadays the iconic appearance of the Brooklands can is a fitting addition to many road and race vintage motorcycles built around the time of the banked circuit's heyday.

Both cars and motorcycles used the fishtail Brooklands can, some with cheese holed fins to lessen the amount of power robbing back pressure.

Source: Real Classic

Source: 'Copperknob' from The National Motorcycle Museum

Just imagine the sound of a whole field of pre-war racing cars or motorcycles roaring around the old banking all blurting through their fishtail Brooklands cans...


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