We wish to say thanks to our many generous contributors, supporters and readers.We are also on Facebook This very dynamic group has many involved and interactive members.Mt Hood, Oregon, October 1964, Ed’s JG Photos Mt Hood, July 15th 1985, Rob De Graff Mt Shasta, 1989, Taylor Sherman 1995, Mirror Lake, Oregon 1991, Oregon, Coos Bay, Jonathan Harel 1985. Mt Whitney, California Arizona, September 1988 Mount Adams, September 1987. Echo_29, Nigh time contrails cas shadows on the clouds.North Vancouver, 1989 Paris, March 31, 1983, Oli Bac Oregon, 1990, mdintenfass 1986, March 8. 1988, Prague pre-1981 – Plates 173 and 174 from “A Field guide to the Atmosphere“, by Schaefer and Day 1977 Michigan – a single persistent contrail cuts the sky, through some rippled clouds. 1972, From the book , by Richard Scorer 1970 – Photo of a stop sign with a persistent and spreading contrail. I’m not sure of the source or accuracy of the date.
The flights were chartered by AFS (American Field Service), an international student exchange organization headquartered in New York, to transport exchange students between the US and Europe.So the more modern an engine is, the more likely it is to produce a persistent contrail.1944, Contrails formed over Germany by the 91st Bomb Group on a mission to Zeitz, Germany on 30 November 1944 1940, Europe, Bomber with fighter escorts 1940s, From the 1950 book [UPDATE] Here’s a collection of photos from “fuzzylogic”, originally posted on If you have already received the Evite and responded, nothing further is required at this time. I will be away from my computer from Feb 16th to Mar 7th inclusive and while away may not be able to immediately respond to Evite requests.Please do not resend the request as I will take care of all of them when I return.Desktop Alert has numerous strategic relationships and partnerships with industry re sellers.By partnering with Desktop Alert, your organization will instantly augment critical information delivery intelligently and efficiently with little to no technology barrier.1984, Rustler Peak, Oregon Old and new spreading contrails.Then, as now, Oregon has a lot of North/South flyover traffic going between California and Portland/Seattle/Vancouver.1954, A photo by Ansel Adams entitled “Rails and Jet Trails” 1945, Europe: Contrails from fighter escorts (P-51s). You see lots of these types of photos when people try to debunk chemtrails, the believers say that engines back then were less efficient, so produced more trails.Ironically, the more efficient an engine is, the more of the fuel is combusted, so more water is produced.