最安全的單發是這個

https://www.pilatus-aircraft.com/en/fly/pc-12

Max Cruise Speed	290 KTAS
Max Range 4 Pax(800 lb payload, NBAA IFR reserve of 100 nm, long range cruise, ISA, FL 300, single-pilot operation, executive configuration)	1,803 nm
Max Range 6 Pax(1200 lb payload, NBAA IFR reserve of 100 nm, long range cruise, ISA, FL 300, single-pilot operation, executive configuration)	1,568 nm
Max Altitude	30,000 ft
Take-Off Distance Over 50 ft Obstacle(MTOW, ISA, sea level, dry paved runway)	2,485 ft
Landing Distance Over 50 ft Obstacle(MLW, ISA, sea level, dry paved runway)	2,170 ft
Max Rate of Climb(MTOW, sea level)	1,920 ft/min
Time to Climb Sea Level to FL 220(direct climb)	19 min
Stall Speed(landing configuration, MLW)	67 KIAS