The flight: SQ 22 from Singapore to Newark. About 19 hours.
Altitude Plot
I was able to get a seat over the wing so I could look for condensation vortices - contrails. I was not disappointed
At takeoff - the faint outline of the vortex
A closer view. Note the condensation is most obvious at the perimeter of the vortex
Here - the gradual destruction of the vortex as it flows over the wing
Two vortices: one originating at the engine Nacelle Strake and the other at the wing tip
Wing vortex - close
Turning into the sun - some stuff on the window
End of vortex photos
C. Frank Starmer