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> Andrews starts his stopwatch when he flies over one [marker] and stops it when he hits the next. He knows the helicopter's ground speed. And, since he's flyin
by throwawaylinux 4y ago
> Andrews starts his stopwatch when he flies over one [marker] and stops it when he hits the next. He knows the helicopter's ground speed. And, since he's flying the same speed or slower than the car below, he can tell if the car is speeding.
Seems odd to do that and not just time the car passing the markers.
- travisjungroth 4y agoTiming a car between markers isn't admissible evidence of speeding under California law. https://www.shouselaw.com/ca/defense/vehicle-code/40801/ https://www.shouselaw.com/ca/defense/vehicle-code/40801/
- throwawaylinux 4y agoThat explains it, thank you. I guess the reason for not using GPS or other instruments for ground speed is also legislation?
- travisjungroth 4y agoThat one doesn't make any sense to me. The helicopter would certainly have ground speed via GPS. I don't get how you couldn't use that. A car can use its speedometer. I remember seeing a laser pod on the wing of a CHP airplane and talking to them about it, but it was a long time ago and I couldn't confirm it more than finding pictures that show the pod (but maybe it's a camera). Based on my experiences involving journalism and aviation, it is extremely possible that the author incorrectly described what the pilot was doing.