Contrail causation
Maybe slightly off topic, or maybe not..........
Does anybody know how often turboprops can/do cause contrails?
Logic tells me that they wouldn't be any different to any other kero burner, but I don't really recall seeing/hearing about such until recently. Whilst I didn't actually sight the aircraft, a set contrails passed under me the other day and the only aircraft I had heard in the area was a B200.
Any ideas........