The Next Generation ship is a fairly complex model to tackle as it has some quite difficult curved surfaces. However if it`s broken down into component parts and good reference is available then it should be no problem. More...
1- Construct an axis of revolution (I used the section line) \r\n2- Use the vector line tool to construct the profile. Use the perpandicular snap to make sure the vector lines start and end, are perpandicular to the axis. More...