From the HARs site regarding VH-OAJ
Stall Speed (clean, max takeoff weight): 205 kt
Typical Climbout Speed: 180 to 190 kt
Cruising speed: Mach 0.84 to 0.86 – about 500 kt / 933 km/h (at optimum cruise altitude)
Typical Landing Speed: 140 kt
Is that stall speed correct?