the Christmas tree. In 1951, Wally Parks, editor of Hot Rod magazine, gathered together a handful of key personnel in the drag racing world to form the National Hot Rod Association, or NHRA.

In the drag racing world, a Christmas tree is the post at the start line that sequentially lights up a set of yellow lights followed shortly after by a green light to tell the drivers to go ...

Since 1984, the NHRA officially uses CompuLink timing systems at venues on the professional drag- racing circuit (including the Christmas Tree, control units, timing sensors, cables, program ...