| Main rotor diameter: 1680 mm (with 750 mm blades) HPS2 Head Main blade length: up to 750 mm Tail rotor diameter: 305 mm Tail blade length: 115 mm Main shaft diameter: 12 mm Tail shaft diameter: 6 mm Spindle shaft diameter: 10 mm Gear Ratios 8.6-11.9 : 1   Main rotor diameter: 1680 mm (with 750 mm blades)HPS2 HeadMain blade length: up to 750 mmTail rotor diameter: 305 mmTail blade length: 115 mmMain shaft diameter: 12 mmTail shaft diameter: 6 mmSpindle shaft diameter: 10 mmGear Ratios 8.6-11.9 : 1 
  Weight including electronics: 4180 g (excluding flight battery).20T motor pulley included (other pulley sizes available)All pulleys are made for 6 and 8 mm motor shaft |