So..... Air is 1/140 earth sea level but gravity is 1/3. Mach 1 isn't that fast at all. So it seems rotors wouldn't work at first thought. Hmmm, does it hover? In order to lift, the engine must produce enough HP to accelerate up at 1G (martian) . Then the rotors must convert rotational HP to moving air HP. My first guess would be really big rotors but then Mach 1 comes into play.
Seems like it wouldn't add up.