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Originally posted by ignorant_ape
they look to be @ contrails from jets flying at 20 / 30 k feeet [ standard air corridor altitudes ] -- and IMHO jou wouldnt hear anything -- no matter how loud it was
Originally posted by MadGreebo
even though the aircraft is not visible it is extremely fast - her estimate (Not an aviation buff sorry peeps) is about 3-4 times faster than a 'holiday jet speed'.
I'm stumped by the three contrails though. Any ideas?
Originally posted by MadGreebo
i65.photobucket.com...
the noise is a deep rumbling, very loud, and even though the aircraft is not visible it is extremely fast - her estimate (Not an aviation buff sorry peeps) is about 3-4 times faster than a 'holiday jet speed'.
Originally posted by ignorant_ape
hang on -- if she didnt see the plane , how can she estimate velocity ?????
like all your threads , this is getting chuffing bizarre