reply to post by depmode101
Have had the opportunity to visit that link I provided?
Here it is again ---- www.flightradar24.com...
You may wish to also read up on contrails....they aren't "jet fuel" streaming behind the airplanes:
In addition, they appeared "slow" because of their altitude. Around 30,000 feet, and higher....that's 6-8 miles, 9-13 km. That distance, and
moving around 480-500 knots. Contrails do NOT form at lower altitudes, such as when arriving/departing from nearby airports:
These were slow, apparently taking off and landing from the same spot (most) or simply turning around and backtracking and leaving that crap in
No, not turning around and backtracking, either. Different flights, in different directions of travel.
....when you see how big the plumes were that lingered, cmon man..
When you read up on what contrails actually consist of.....you see that they are little different form cirrus clouds. AND, certainly you have seen
cirrus clouds, before? They can remain airborne, and "linger", for quite a while...like many other forms of clouds. When atmospheric conditions
are ripe, and proper, for them to form and remain.
...how come a jet normally has about 50feet of jet fuel behind that dissappears pretty quickly..
Again, as mentioned. NOT "jet fuel". (Airlines would go out of business, pretty quickly!! AND, the airplanes' range would suffer, IF "fuel"
were spewing out the back!! That stuff's expensive!! And, if it's gone, engines don't work so well, either!!)
The short contrails, that evaporate/sublimate quickly after forming do so because the atmospheric environment, when they form, isn't conducive to
their lingering, and remaining and growing into more extensive cirrus clouds.
The nature of the atmosphere is constantly changing, all the time. You can't SEE it, of course. With naked eyes. Clouds, when they form (and
contrails) are visual indications, clues. Measurements, taken by equipment lofted in weather balloon packages take readings, to be interpreted by
It is all readily available, for study and research, on the Web......