See Also: Guard Beam - Motor Sports(gambling)
Sealed Beam - Motor Sports(gambling)
I-Beam Suspension - Motor Sports(gambling)
Guard Beams - Motor Sports(gambling)
Projector-Beam Headlights - Motor Sports(gambling)
Twist Beam Axle - Motor Sports(gambling)
Lights, Projector Beam - Motor Sports(gambling)
Twist-Beam Axle - Motor Sports(gambling)
Bracer, Archer' s Guard, Arm Guard - Archery(gambling)
Professional Sports Car Racing - Motor Sports(gambling)

Guard Beam - Motor Sports (gambling)


A light beam-to-photocell commection located 16 inches past the stage beam that is useed to prevent a competitor from gaining an unfair starting-line advantage by blocking the stage beam with a low-installed object such as an oil pan or header collector pipe. If the guard beam is activated while the stae beam is blocked, the red foul light is triggered on the Christmas Tree, and the offender is automatically disqualified.