wrote in message
ps.com...

i dont doubt contrails have been around as long as the Wright Brothers

There's your first problem. The Wright aircraft almost certainly didn't
generate contrails.

there are no pictures pre 90's that show the type of con/chem trails seen
now a days
- now prove me wrong

*sigh* If we do, are you big enough to acknowledge it?

http://www.goodsky.homestead.com/files/gallery.html

In World War II, German pilots used to climb until they created contrails
and then descent to just below that level. That way, anything coming at them
from above would be exposed by its contrail.

This is old stuff. Of course, it's very difficult to prove that the
contrails are identical, as they're obviously not because extensive
historical evidence shows that in those days, the trails were white on gray,
not white on blue, but you have to remember that everything was black, white
or shades of gray then.

-c