Daniel wrote:This is because of temperature changes due to changes in altitude.
As an aircraft's altitude increases, the surrounding air temperature decreases at a rate of about 3.5 degrees for every 1,000 feet.
[please forgive my use of the stupid English system of measurement]
For every gallon of fuel an aircraft burns, it exhausts about a pound of water. (Your car does the same thing, it is visible on cold mornings at the tail pipe.)
At 30,000 feet the air temperature is about 30-40 degrees below zero.
Contrails that appear behind aircraft are actually frozen water crystals, commonly called ice.
Small temperature/altitude and humidity changes, along with the angle of the sun, effect the visibility of the contrail, and can cause the "on/off" appearance. The trail of water vapor is always there (as long as the engine(s) are running!), you just cannot always see it.
A friend of mine tells the story of a Navy A-4 (small jet) driver who noticed that at Xthounsand feet he was producing a contrail, and at X+50thousand feet he was not. He sketched out a pattern of altitude and heading changes and cleverly began skywriting with his contrail. He wrote vulgar word in the sky, then dropped down below it to admire his aerial penmanship. He then realized that his skywriting was visible to anyone in the city of Rome, Italy. He spent the rest of the deployment confined to quarters as punishment.
Thanks Daniel, that's very comforting.
I'm lucky enough to live very close to a shared airport and RAAF base, and it must be a flight path because there's always something flying overhead so I'm quite used to seeing contrails. I remember laying on my trampoline when I was younger (only about 8 years ago... I'm only 20 lol. I deleted my facebook too by the way, just in case you were wondering!) and remember being fascinated by the jets going past and leaving a line across the sky. Though as I recall they never lasted too long, most of them faded away after no more than a minute. Though I could be wrong, that's why I'm asking. Though on a typical day the contrails only last about 5 seconds or so. I don't see contrails off the fighter jets, but that's because they fly at lower altitudes as you said, where it isn't cold enough for the water vapor to have a visual affect. I certainly hear them though lol.
So in your experience, are contrails like this normal? It would actually mean something from someone I can trust and not just a wikipedia article or the media. I did not see the plane actually fly across, but I can guarantee that it was left by a plane and not regular clouds. It starts off looking like an everyday contrail then floats around for hours up to a day slowly expanding. I would say the plane flew across roughly an hour or two before I took the photo. So in your career, would these examples just be regular contrails? I don't know whether or not the ground temperature has any effect on the temperature thousands of feet high, but it was a regular 25 degree celsius day.
There's one more thing I need explained before I can safely assume it's nothing more than a theory, which is the tiny webs people have reported seeing after a spraying.
Daniel wrote:In my aviation career I have loaded and burned literally millions of pounds of fuel into aircraft of all types. To my knowledge there was no "mind control additive" in the fuel. I also doubt that a psychotropic substance could remain active after being subject to the temperatures involved in a petroleum combustion cycle.
Yeah, I've heard this theory that it's in the fuel. I don't think it's credible at all. If it does indeed happen, I would say it wouldn't occur through the fuel and on commercial jets, only aerosol containers on government planes.
Similar to what Danshelper mentioned, apparently the substance sprayed can produce an electromagnetic field which can be used in conjuction with haarp, but I'm not really qualified to give any details since it's not something I put a lot of time into studying. I heard this radio interview on Youtube which more accurately explains what I mean.
http://www.youtube.com/u...mhum#p/a/f/0/FRwEzo4vTM4 It would be too easy just to call the whole thing false if I didn't know that people do indeed try to change the weather for whatever reason, and spraying chemicals or metals has been one of the answers of how to do so. And the documentary I posted raises some really good questions too.
One thing's for sure, being exposed to so many terrifying things in this world such as the one's raised in this thread, it's enough to put someone in a very dark place. I was talking to someone and she said, "Do you feel any better for knowing it? Do you think your life would be better if you just never knew?". It did make me think. And to most people, no, it would just depress them knowing there's not much you can do about it. The only reason why I see it differently than most people is that, as danshelper said, I know that Yah is laughing at their pathetic power and plans. We already know how the future will play out, and if you trust in Him then there's nothing to fear.
EDIT: Some people say it occurs much lower than where contrail can actually form, it's very well documented. I'll have to start saving where I read things.
Also, half the videos on youtube of 'chemtrails' are more than likely regular contrails, simply because the trail is only visible a certain distance away from the motor after the vapor has time to turn into ice or such. However some videos you can clearly see the trail coming from the wings, as if it was something else entirely.... Looking at my photos again with the right atmospheric conditions in mind, they probably are just contrails, I'd still like to hear what you think. The whole thing is messing with my mind! lol I read one thing that convinced me, then someone else that seems to do a good job refuting it!
