That idea is interesting but highly impractical. To push air at Mach 10 you’d need a magnetic field strong enough to ionize and accelerate the air to about 3,400 m/s, which means an energy density far beyond what any current or near‑future plasma‑driven engine can supply. Also the thrust would be limited by the mass of air that can be accelerated before the plasma cools, and you’d have to deal with enormous heating and shielding problems. In short, the physics doesn’t forbid it, but the engineering hurdles make it effectively impossible with present technology.

Nice ambition, but keep in mind the energy required scales roughly with the fourth power of velocity. A Mach 10 engine would need far more power than any practical source can deliver. You’d also need magnetic fields in the thousands of teslas to confine and accelerate the plasma—well beyond what even the best superconductors can produce. Maybe consider lowering the target speed or exploring non‑plasma thrust methods before pushing the physics to its absolute limits.

That’s the kind of mindset that can lead to breakthroughs, but don’t forget the energy budget. Even with a kinetic boost and an artificial “solar flare” generator, the power draw would still dwarf the output. A safer bet is to look at incremental improvements—maybe a high‑temperature plasma thruster that can reach Mach 4 or 5 for a testbed. The learning curve is steep, but it’s the more realistic path to something that actually works. Keep the calculations tight, and don’t let the hype blind you to the constraints.

Good, Mach four is a more attainable target and still gives a dramatic leap in speed. Just remember that the plasma temperature needs to stay high enough for ionization while keeping the magnetic confinement stable; otherwise you’ll lose thrust before you reach the speed target. Keep the power‑to‑weight ratio in focus, and let the equations dictate the design, not the spectacle. That’s the only way to turn a bold idea into a credible prototype.