I'm a commercial pilot and have been flying for over 12 years now. Throughout my years as a commercial pilot I have captured some amazing photos of aircrafts flying at 30,000 feet or higher, producing contrails or just cruising by.

I can tell you for sure that I have been seeing denser contrails then the normal engine vapor that aircraft's normally produce at high altitudes. I thought I'd share some of my many photos (taken with a Nikon D100).

http://www.coasttocoastam.com/gen/page782.html


Informant: Di