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Automotive dictionary (encyklopedia)

Dictionary of terms and abbreviations for cars (automobiles), motorcycles (bikes),
bicycles, boats, engines, machines, machining and car fixing.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Drag coefficient

(Cd) A number used in calculating the aerodynamic drag acting on a vehicle. The drag coefficient is a function of factors like the shape of the vehicle, airflow through the vehicle for ventilation and cooling. The number is determined in a wind-tunnel or by coasting tests performed on the vehicle. The lower the drag coefficient the less drag on the vehicle and the more aerodynamic is the vehicle. A sleek car has a drag coefficient Cd of about 0.30; a square, flat plate Cd is 1.98, sphere 0.47, hemisphere 0.42, cone 0.50, cube 1.05 and cylinder between 0.82 and 1.15, depending on its length (the longer is te cylinder the lower is Cd), while streamlined body can be as low as 0.04. Also signified by Cx or Cw.
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Tips and tricks for lowering car insurance costs in Great Britain

If you’re trying to finesse the lowest price of car insurance in Great Britain, there are a few things to watch out for. Car insurance marketing is clever. Its aim is to make you feel you’re getting the best deal but to maximise the insurer’s profit at the same time.

Get a ‘new’ quote from your existing insurer

Often applying to your existing insurer as a new customer produces a cheaper price than its renewal quote. Insurers put out more competitive prices to attract new customers so simply start again and you could be better off.

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