Some interesting stuff I found if of interest to anyone.
Brian

http://pubs.drdc.gc.ca/PDFS/unc48/p521647.pdf

http://www.google.com/search?hl=en&rls=com.microsoft:en-au&q=Modeling+an+Aircraft+in+Nurbs&start=10&sa=N

http://www.icon.fi/~jtki/3dimens.html

http://ogigi.polsl.pl/biuletyny/zeszyt_14/z14cz3_6.pdf