Like always JETPILOT, thanks for sharing your knowledge.
With regards to me thinking that compressing air through a jet engine would cause condensation to occur...I was assuming this would happen. I assumed that if you squeeze air to over 400 p.s.i. that the moisture in it would condense.
I should know better than to assume something. I know that the PIC of an airliner should never just "assume" that the co-pilot has put the gear down.
Another reason why I felt that a jet engine would cause condensation to occur is because of what I do for a living. I drive tractor trailers. All trucks that use "Air Brakes" have an Air Compressor which supplies air to tanks at 120 p.s.i. At the end of my shift, I have to drain water from these air tanks. Aparently a result of compressing air.
Also, between the air compressor and the supply tanks, there is an "Air Dryer" which removes as much water from the system as possible, after being compressed, before it reaches the supply tanks.
Well JETPILOT, you sure made things crystal clear for me regarding the reason for the vapour in the engine intakes and over the wings. When it comes to compressing air and condensation though...I'm sure I'm confused!