Please explain why there is no apparent vapor gap between these trails and the engines. Also why stuff is coming out of the fuselage on some of these planes...? Fuel dumping usually occurs from the wings of airliners. Maybe it's a different model. I'd like to know exactly what were dealing with before someone calls it fuel dumping - ie what type of plane it is, and where the fuel is dumped from on that type of plane. http://chemtrailsplanet.net/2013/06/06/contrail-science/ This picture is from a full video, linked in the article above. This picture is from a full video, linked in the article above.