Ok...i've really been thinking about this

the thought of a laser even hitting the glass on a plane's cockpit in mid-air is just ridiculous..

planes fly at MORE than 175km/h

a commercial flight of about >1 hour gets to >33.000 feet off the land (that is >10.0584 kilometers)

moving on:

if a PERSON with a handheld laser

**POINTER**would want to hit the airplane then, assuming he/she (lol we know there are no "she's") has a very steady hand, he would have VERY little time and precision to even go NEAR the WHOLE plane, you cant really be that accurate aiming with your bare eyes at something that is over 10km away, AND KEEP IT AT LEAST FOR MORE THAN 0.5 SECONDS ON IT!

now,

lasers have the disadvantage of the damned

**divergence**: so anybody with a "decent" laser (lets say, 1.0mRad divergence, just to have a round number) would have a 1mm thicker beam for every meter

do the math, at 10km off the ground = 10.000meters,

1 metre -- 1mm. divergence

10.000metres - x = 10.000mm divergence = 10 meters divergence

10 METERS

**TEN**

METERS!

METERS!

that is, sirs, a LOT compared to the 1mm that comes out of the laz0r headz0rzz

and thus at this point we can state that, a regular "terrorist" kid with a normal green laser pointer, rated at >50mw.

would have to hit the airplane with a circle 10meters wide. at that length the dot would certainly lose some power (it doesnt just "lose" power, you know what i mean, it is not 100% focused into one tiny dot anymore), dont you think?

that is why i think hitting a plane with a laser can't really blind a pilot with so little concentrated power. its not that we should do it, but the news coverages are making such a big deal out of this and i just thought to do some estimates on the real facts..

share your opinions (and correct me if you may)