j.gibson;

Here is the device the Florida Club 40 guys use:

The number cards also have lap numbers written on the back of the NEXT card (facing the operator) so the operator can see which number is actually showing to the pilots without looking around or over the top of the rig. In other words, on the back of the next card in the deck (facing the operator) there is a smaller number showing the previous cards "front" number. The other set of cards are the "cut" cards.

I'm thinking of building something like this for our races in Nashville. I'd probably use an electrical conduit pipe (1-1/4" dia or so) for the horizontal pipe. Also, for the supports, rather than a frame, I'd probably use two (or three) sharpened pieces of 1/2" re-rod to be pushed or driven into the ground at both ends of the rig. Each of these supports would have a metal ring welded onto the top for support of the horizontal pipe. I would suggest making the cards bigger and the numbers bolder than you think would be necessary. I've always had trouble seeing the numbers in the heat of battle.

Doug Bebensee