At first I thought "Thats a post card shot!", Then I saw the twin bow's and thought WTF is that photoshopped. Nup, thats just two ships. Great capture Peter. Where is it photographed?
I think its called stacking. http://www.flickr.com/groups/canonpowershots3is/discuss/72157600370418804/ http://edwinsetiawan.wordpress.com/2010/06/24/stacking-multiple-photos-for-night-photographs/ http://www.tawbaware.com/maxlyons/cgi-bin/image.pl?showFileName=ST_PICT4196_4201_Tree_Plane.jpg&ga...
The GRD also has a purple hue at long exposure. Have you considered laying images over one another. I've seen images made up of 12 images layered ontop of each other.
Aaaah, ISO/TS 16949:2002 accredited company. No worries. Thanks Peter. And that was the quiet side of thier complex. They got biggera doors in the next street. It was a drab grey paint job on the building so I went with B&W. Next time I'm a gonna use film.