Sports (Q&A)

Answer:

A Burt strut or timing strut is a black, rectangular plate attached to the front of a competition vehicle, usually a racing car, to provide a standardised, repeatable method by which to break a timing light beam at the start and finish of events timed to high-degrees of accuracy. These events are commonly those in which competitors race against the clock, rather than physically against another vehicle. The Burt strut is compulsory in most national and international timed sprint events. Within the United Kingdom the rules governing the size and position of the strut are determined by the Royal Automobile Club Motor Sports Association. The strut is currently defined in the MSA Competitors' Yearbook (the Blue Book) regulations document as being a single rectangular plate, painted matt black on both sides, no less than 254 mm in height and 51 mm in width, the lower edge of which should be mounted not more than 200 mm from the ground, with the upper edge being at least 454 mm from the ground. The strut must be the most forward part of the vehicle. There are no restrictions on the material used to make the strut, so long as the strut itself conforms to the regulations, and some designs can be very simple to construct.

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