Design a passenger cabin that meets the needs of upper-level corporate directors, CEOs, CFOs and chairmen of the board. A cabin seating 10 people comfortably with luxury amenities is preferable. Include space for a crew of two, galley, bathroom and wet bar. The cabin should be designed in a way that makes customization possible.
Incorporate the cabin design into a streamlined fuselage design with room for luggage and equipment storage, as well as the cockpit. The structural properties of the fuselage must handle the stresses of supersonic flight, engine thrust, landing and takeoff and wing flex. Consider that at high speeds, the friction of the air will heat the aircraft enough to lengthen it considerably, while inside the cabin must remain comfortable and cool.
Create the wing assembly designs. Within the wing structure, room for fuel tanks, hydraulics for operating control surfaces and mounting engines must be considered.
Select the engines to be used. Good suppliers include Rolls Royce and General Electric, although other companies produce reliable and powerful engines as well. Consider new technologies, such as the recent breakthroughs in plasma and hydrogen engines with high thrust-to-weight ratios that consume relatively little fuel and produce more energy than they consume and very little pollution.
Design the aircraft's electronic control systems. Other systems can be incorporated from existing aircraft designs such as landing gear, guidance, positioning and other critical systems. At the same time, produce various models of the aircraft for testing in a supersonic wind tunnel, such as that owned by NASA and available for public use (at a fee).
Submit the completed design to the FAA for approval before manufacturing. After approval, request bids for manufacturing from various aircraft manufacturing companies.