Technical specifications:
• Airframe weight: 2680 ( with blades, no battery, no electronic )
• Main rotor diameter: 1558 mm (with 690 mm blades)
• Main blade length: 650 to 730mm
• Tail rotor diameter: 284 mm (with 105 mm tail blades)
• Tail blade length: 105 to 115 mm

• Cyclic servos: standard size 40mm
• Tail servo: standard size 40mm
• Main ratio: 12.1 to 8.8 :1 (21T included: 10.4:1)
• Tail ratio: 5.0-4.8:1 (27T included: 4.8:1)
• Typical speed controller: 12S 160A
• Typical motor size: 12S 500-560 Kv, 4525 series (max dimension: 62 mm diameter, 70 mm height)
• Battery compartment: 12S 4200/5500 mAh (max dimension: 56mmx70mmx320mm, suggested weight from 1400gr to 1700gr)

Kit includes:
• 21T motor pulley (other pulley sizes available)
• 2 battery tray with straps
• 690 mm main blades
• 105 mm tail blades