Question for Jeff Foster and Dave Kommel

[Michael Beard]

Originally Posted by Toby Lang

This isn't that big of a deal. The video camera just catches the stage light as it's going out and the red light as it's coming on. Here are just a few examples I found. There are plenty more.

Not a big deal? That is a HUGE deal! With incandescent stage bulbs, it is completely plausible to see the red light prior to the Stage light *appearing* to be out, due to the amount of time that an incandescent bulb retains glow after the power to it ceases. This should NOT be the case with an LED! The stage light going out and red light coming on should appear simulatenous at best. If there was a visibly discernible difference, then the stage light should appear to go out before the red light, not the other way around.

Seeing multiple instances of the red light coming on before the stage light going out makes me MORE concerned, not less.

My question to you is: How does the system know if you are a half inch behind the beam?

That'd be a question for Foster.

Old stories:
http://www.competitionplus.com/drag-...-not-red-light

http://www.competitionplus.com/drag-...tem-guard-beam

In the comments section, there was a claim that it happened at Charlotte to multiple cars. So it's guard beams one day, and camera flashes the next...