FlightSimTools.com reports that it “….. is proud to release Contrails Pro, a module for FSX and FS9 that adds realistic contrails to AI aircraft. Easily installed, it will instantly add detailed contrails behind high-altitude AI aircraft in your Flight Simulator sky. You will no longer need a radar to see big jets cruising above you….”. “….. Contrails Pro comes with its own optimized display engine, which allows displaying contrails in unprecedented detail while keeping high frame rates. Just like in the real world, contrails will slowly dissipate in the air and will glow in red during sunrise or sunset. There are excellent customization options allowing you to specify the contrail length, density, dispersion and a few other settings.
For more information and a free demo version, please visit the product page….”.
[Update] We are proud to say that this product as well as Instant Object Maker by the same developer are now being sold at simMarket > click!