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Old 07-21-2017, 11:47 AM
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mr_matt
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Originally Posted by flyinfool1
As far as waiting for the laser beam to get to the plane and back, the laser beam is traveling at around 186,000 miles per second, it takes about 4 seconds to go to the moon and back, or it can go around the world about 7.5 times per second. It is really fast, 400 feet is nearly instant. It will take that laser 0.003 seconds to get to the plane and back to the range finder.
Hey Jeff, if the light is taking .003 seconds, make sure your spotter is watching out for the space station ;-)
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