Tag Archive | aerodynamics

Flying the Flag, Costing the Earth?

England flag flying from a car, World Cup 2010, South AfricaOK, so I object to anyone flying our national flag who feels the need for the word England to be printed across the middle. But is there a better reason for banning the flags flown from car doors?

Flags are not very aerodynamic, and cause drag, making the car burn more petrol than normal. One to two percent more than normal, so over the couple of months before and during the World Cup in South Africa, each car with a pair of small flags will use an extra five litres (or a gallon) of petrol.

If a million cars in England (almost typed the UK there — but no-one in Scotland will be flying the Cross of St George!) had two flags each, that amounts to five million litres of petrol spent dragging flags around the country’s roads.

Banning these silly little flags would have the same environmental effect as shutting down a large power station for five days, and save British motorists over five million pounds of expense. It is enough petrol to fill two Olympic sized swimming pools,

So what is holding the government back in these days of austerity?

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