Those requirements are not enormously exclusive. It's only bad when you also require low cost and minimal training. (avoiding: turbine, complex aircraft, high s

Those requirements are not enormously exclusive. It's only bad when you also require low cost and minimal training. (avoiding: turbine, complex aircraft, high stall speed, high performance, pressurized, etc.) Consider a lifting body like the Martin X-24A. It's a decent car shape that has been tested to 1036 MPH (1667 km/h, Mach 1.6). Add the engine and lift fan system used in the F-35B VTOL aircraft, and you have more than enough power for high-speed flight. You won't even need a runway.