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Well my point was more about low level moisture, which is what is going to drive precipitation events. That a jet up high, while adding water by means of its exhaust, is not adding water to the lower levels, that that low level water is what is neccessarily for rain and snow events.
Originally posted by ProudBird
H2O.....or, "water". A result of the burning of hydrocarbons. It is not a "new" scientific concept (for those reading, who are not the person I am replying to....since I know full well that that person comprehends this already....).
Originally posted by ludshed
reply to post by MarkScheppy
Way to stir up the $h1#. I like seeing all the di@% heads with plane names and avatars spending their time writing lengthy and repeated responses for dozens of pages. Keep it up.
The aircraft has a bay outboard of each of the main landing gear that was originally supposed to store contrail-suppression chemicals but was never used. The two bays are about 2.75 meters (9 feet) long and are as deep as the wing. The original B-2 design included tanks outboard of the main landing gear that would store a chemical to mix with the exhaust and suppress contrail formation. According to one report, "chlorofluorosulphonic acid" was to be injected into the jet exhaust to eliminate contrails. But this scheme wasn't actually used. Several other acids were tested too, but the result was that the chemicals were too corrosive.
5.1 Hiding smoke contrails (jet wake) Reducing smoke in the exhaust is accomplished by improving the efficiency of the combustion chambers. Getting rid of contrails - that distinct white line in the sky caused by high flying jets - is a harder task. Tests have been done using exotic chemicals to be inserted into the engine outlet gases to modify infrared signature as well as to force water molecules in the exhaust plume to break up into much finer particles, thus reduce or even eliminate contrails. One of the chemical used for this was chloro-fluoro-sulphonic acid. Several other acids were tested too, but the result was that the chemicals were too corrosive and the system was waved.
Originally posted by Gmoneycricket
reply to post by Clisen33
Great pictures it shows the need as to why the military on Stealth bombers felt the need to experiment with adding chemicals to contrails. So since we have proof of Military adding chemicals to contrails, how long did they do it, how many different chemicals did they try?
How toxic was the experiments over our heads?
Are they still experimenting with the idea?
Originally posted by Gmoneycricket
reply to post by firepilot
How long did they do it, how many different chemicals did they try?
How toxic was the experiments over our heads?
Are they still experimenting with the idea with non corrosive chemicals?
In 1994 the government awarded a $63.5-million [other sources report $16 million] contract to the Northrop Corporation to fine-tune stealth bombers in a number of ways. One retrofit involved the installation of "contrail management systems." Ophir, an optical sensor manufacturer in Littleton, Colorado, saved the day. Its Pilot Alert System uses lidar (light detection and ranging) to differentiate contrails from clouds and tell the pilot to change his altitude when his aircraft is "conning."
The balance of power in the world was changed in 21 seconds on March 27, 1999 by a colonel in the Hungarian Army. He’s retired, and back to his preferred career as a baker. As a tip of the hat to his military career, he makes a cake every year with his platoon buddies to commemorate how he stole the best U.S. military technology from the sky.