@BillRM,
Robert in fact an analogy would be telling an engineer to design a plane without any more details then it should be a plane.
The range, the carrying capabilities, the maximum ceiling the total cost allows per plane is all unknown along with a thousands and one more details.
So a design plans of a 747 or a MX ultralight would both fit your request for a design of a plane.
Without limits and conditions some requests and some questions are meaningless.