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9-4-1. INFORMATION REQUIREMENTS
When information is received that an aircraft plans to dump fuel, determine the route and altitude it will fly and the weather conditions in which the operation will be conducted.
9-4-2. ROUTING
Except when it is dumping fuel for emergency reasons, an aircraft in either VFR or IFR conditions may be requested to fly a different route.
9-4-3. ALTITUDE ASSIGNMENT
If an aircraft is dumping fuel in IFR conditions, assign an altitude at least 2,000 feet above the highest obstacle within 5 miles of the route or pattern being flown.
Originally posted by SimonPeter
reply to post by Zaphod58
When I go to the Flea Market the jets turn final about 1 mile before they passover the Market . I have seen the trail inboard of the wing tips. They are not at the wing tips where the vorticies would originate . This was on different days , different humidity levels . Some of the same aircraft would not have the trails .
I do understand that low pressure areas do exist behind areas on the wings such as flap areas but this would have to be at the ends of the ailerons .
Britain disburses materials for creating shade to keep the UK cooler
Originally posted by SimonPeter
reply to post by Aloysius the Gaul
Still with all that said . I was hunting about Chem trails some time ago and did find that I think it was in1977 that the military went before Congress and admitted to exposures of 250 different population centers to both biological and chemical agents to find how they propagated .And there were some direct contact injections in doctors offices . People died unknowingly participating in these test .