It is in fact registered as a single-engine[1], but I am also suspicious. There is wiggle-room in a twin with single drive train. If the engine were also turbo

It is in fact registered as a single-engine[1], but I am also suspicious. There is wiggle-room in a twin with single drive train. If the engine were also turbo/supercharged and could do closer to 1000shp, might be possible. But if really only 500hp I think it's more 450 mph with a single pilot and no load at 45K. Same with range and field length. [1] https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=818WM https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?N...