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- #201
Living as I do, smack bang between Heathrow and Gatwick airports, I have seen plenty of X patterns in the sky formed by the contrails of the numerous planes travelling on the various North/South East/West flight paths I have in the sky above me - often forming grid patterns as it happens. In fact it really isn't unusual to see planes apparently crossing over each over in the sky... I still haven't seen a collision or any slow-moving jumbos however.
Grid pattern in the sky, but no fluoride in the water, makes you think dunnit!?
The point is that they shouldn't be staying in teh air, they should be fading away.