reply to post by jpm1602
jpm, what 'I doth protest' is bad science.
COULD the militaries of the planet be 'spraying' chemicals? Sure, they certainly could. I'm just trying my darnedest to point out that regular
commercial airliners DO NOT!
Again, if it's the military, and they wnat to 'poison' us, why in broad daylight? AND, why over Las Vegas (Nellis Air Force Base is right there,
Area 51 just some miles north and west...)???
OzWeatherman did some great stuff, posting it for y'all, and greedeyedleo is actually ON an AFB in Alaska, and she see contrails too. See, there are
quite a few points off the Coast of Alaska that 'anchor' some North Pasific routes to Asia.
One thing someone asked, about the 'tic-tac-toe' look, and stating that they were all at the same altitude...We now have vertical separation
standards of 1000feet in US Airspace. Airplanes at the same altitude, in the upper levels, are horizontally separated by 20 miles. A jet at cruise
speed covers between 6 and 8 miles every minute, depending on prevailing winds, etc. So, even if two airliners are on the same route, one will pass
overhead, and the other 'in trail' jet, 20 miles behind, will come along a few minutes later, based on your vantage point on the surface.
If you look at that 'grid' pattern, you will see that not all contrails are same altitude.
Next time you're a passenger, you might get a glimpse of a contrail out your window, but usually most are too busy enjoying the delicious inflight