2007-04-04 21:09:36 · 11 answers · asked by Anonymous in Cars & Transportation ➔ Aircraft
What you are seeing is called a "CONTRAIL".
A visible condensation of water droplets or ice crystals from the atmosphere, occurring in the wake of an aircraft, rocket, or missile under certain conditions.
Like these:
http://www.air-and-space.com/20011114%20Saline%20Valley/1%2011%20B-52H%20contrail%20l.jpg
http://www.aerosol-soc.org.uk/images/contrail.jpg
http://www.colby.edu/cpse/equipment2/highclouds/contrail.jpg
2007-04-04 21:18:52 · answer #1 · answered by GeneL 7 · 2⤊ 0⤋
The flying object that leaves dense smoke line behind is a jet.
2007-04-05 04:17:27 · answer #2 · answered by sriram v 2 · 0⤊ 0⤋
If you are seeing this "dense smoke line" high in the air, then it is an airplane and that is a contrail. If it is close to the ground and you can absolutely say that it is not an airplane or helicopter, then you have seen an alien craft.
2007-04-05 13:38:05 · answer #3 · answered by IFlyGuy 4 · 0⤊ 0⤋
Would like to know the reasoning behind the inference "they are not airplane"
Most probably it is the condensation trails.
2007-04-05 05:05:06 · answer #4 · answered by ? 6 · 0⤊ 0⤋
a high flying thing called a JET u really need to get out more
2007-04-07 23:18:41 · answer #5 · answered by rescueswimmer1 2 · 0⤊ 0⤋
Aliens.
2007-04-05 04:17:05 · answer #6 · answered by Anonymous · 0⤊ 1⤋
they are kind of airplane called "Jet"
2007-04-05 04:16:19 · answer #7 · answered by Afsaneh D 2 · 0⤊ 0⤋
um...yeah they are airplanes, mate. not commercial but
military. wow, you should really get out more.
2007-04-05 04:12:28 · answer #8 · answered by object_zero77 1 · 0⤊ 1⤋
they are airplane
2007-04-05 18:37:29 · answer #9 · answered by John C 2 · 0⤊ 0⤋
it's your imagination kid...go back to bed
2007-04-06 04:33:27 · answer #10 · answered by hsupilot08 3 · 0⤊ 0⤋