Excellent page about a major city that gets so few contrails that seeing two at once causes major consternation:
http://www.lifeonperth.com/contrailsoverperth.htm
Lighthearted, yet informative.
http://www.lifeonperth.com/contrailsoverperth.htm
Lighthearted, yet informative.
External Quote:
It is most unusual for two contrails to be visible over Perth at the same time. Strangely at 5:20pm on Sunday June 7th 2009, it happened. As the sun slowly set behind the Indian Ocean, two high flying jets passed overhead. Emirates EK 408 was on schedule from Dubai to Melbourne, cruising at an altitude of 12 km. Unexpectedly at an altitude of 13 km, a corporate jet en-route from the Maldives to Sydney appeared. For a brief moment both jets left visible contrails in the sky. The Maldives aircraft was an ultra long range Bombardier Global Express, capable of carrying up to 19 passengers in high speed luxury. You can just make out its shorter contrail, above and to the left of the larger vapour trail of the Emirates jet.
So unusual our Airforce went to DEFCON 1.
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