At the time of that photo it had 1x 550 type motor running a 25mm prop. however it was over powered and steering with one rudder was poor unless at speed.
Following a motor and shaft re-fit, she is now fitted with 2 graupner speed 300s, running 20mm props, she now gives a realistic turn of speed and is very manouvreable, especially at low speed. She can do a 360 turn in just over her own length