Deleted
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Post by Deleted on Oct 3, 2015 9:06:11 GMT
Just been trying to ascertain whether commercial aircraft are coerced into spraying. I have been matching Chem Trails with flight radar, & Commercial aircraft seem to be also dumping daily.
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Post by Jeff on Oct 3, 2015 9:15:27 GMT
welcome to the forum.....as for your question....erm no........vapour trails are made of water...not chemicals !!!
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Post by Jeff on Oct 3, 2015 9:20:17 GMT
The reason planes leave vapour trails is because they’re burning hydrocarbons, chains of carbon atoms linked together with hydrogen round it. When this mixes with oxygen you make water and some carbon dioxide. The vapour trail is the water and because the plane’s very high up in the air actually what you’re getting is ice. Vapour trails are water vapour that often form ice crystals. They leave those nice miniature clouds behind in the wake of the plane.
It is also possible to make much weaker vapour trails form without the plane's engines running. As the plane flies, the wings create a vortex of lower air pressure. This low pressure can lead to lower temperatures, where water vapour condenses forming vapour trails starting at the tips of the wings.
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Post by davebasing on Oct 3, 2015 9:24:10 GMT
Not sure what you mean by Chem trails. If you mean the visible contrails behind aircraft at altitude then this is simply water vapour condensing behind an aircraft when the temperature, dew point etc are within certain ranges. Trail height will always be a highly variable band between which the conditions are such that condensation will occur. Aircraft and their crews have no control over this at all, its all down to the climatic conditions. The trails themselves are quite harmless as they consist just of water vapour although the trails can in a few cases contribute to the formation of cirrus clouds, otherwise they will in the vast majority of cases simply disperse. So if you are chasing a conspiracy theory its a total non starter.
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Post by carmedic on Oct 6, 2015 10:34:16 GMT
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Post by lordevanelpuss on Oct 6, 2015 11:42:51 GMT
As 'davebasing' has pointed out, climatic conditions are part of it, this is why the height at which an aircraft will start trailing is variable. When I was a keen 'dot spotter', many years ago now, one day an airliner would 'trail' at FL280, while on another day they wouldn't be trailing until about 310 or higher. Weather conditions also determine how long the trail persists after the aircraft making it has flown past the observer. If the atmosphere is dry, trails are likely be short and will not persist. If very dry there may be no trail at all, even above FL300. In damp conditions trails are likely to persist & spread out into man made 'clouds'. This can also be a sign of approaching bad weather.
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