Main rotor diameter 935mm (with 420mm blades)

• Main blade length 380 to 420mm
• Tail rotor diameter 190mm (with 70mm tail blades)
• Tail blade length 60 to 70mm
• Micro size cyclic servos (23mm)
• Mini size tail servo (35mm)
• Maximum battery size: 40x50x135mm
• Recommended battery: 6s 2200/2700 mAh
• Recommended motor: 3020 – 3215 – 3220
• Recommended KV motor: 900-1000 KV
• Recommended battery weight: 350-420 grams
• Recommended ESC: 60 (70-80A is required only for hard 3D flight with temperatures above 30°C)
• Tail rotor ratio 4:1
• 8mm main shaft
• 5mm tail shaft

Raw 420 main features:

• Quick release battery tray with integrated connectors
• Zytel HTN resin blade grip arms (sacrificial)
• It is not necessary to remove the canopy to replace the batteries.
• Main ratio 1:5/6
• Tail ratio 4:1