There has been some discussion in the past about the lofting technique presented in a video tutorial on how to use the technique to make an aircraft nose.
IMO, I find the tutorial useless since a cylinder can do the same job much better in much less time.
Therefore, I take it upon myself to post this link:
http://www.onnovanbraam.com/tutorials/rubberboat/This tutorial is not a video. Therefore, you'll have to read. But the tutorial gives a much more practical idea on the concept of lofting. Right after I'm done making the Nissan, I'm planning on making a tutorial of my own that will further demonstrate the capabilities of lofting.