Starting a new class of helicopters by incorporating the use of blade sizes up to 640mm allows 700 class flight characteristics in a smaller, more affordable package.

Century Helicopter Products has filled this gap between the 600 and 700 size. By offering better fuel economy the Radikal N640 provides the power to keep up with the big boys. 
Without having to take that giant leap to a 700 class helicopter, the pilot can now enjoy the presence of a larger helicopter at a more affordable entry fee.

Models:

• Flybar         (part# CN1320NFB):   MSRP 399.- € 
• Flybarless (part# CN1320NFBL): MSRP 379.- € 

Features:

• CNC full metal precision rotor head w/8mm spindle.
• A choice of flybar or flybarless models
• 8.5: 1 Main Gear Ratio
• 4.5: 1 Tail Gear Ratio
• 430cc (14.5 ounce) Fuel Tank
• Engineered for OS 55/YS 56 motor or compatible engines
• Carbon fiber frames for ultra-rigid and compact design
• Easily serviceable engine maintenance
• Push/pull CCPM control system
• Break-away canopy standoffs
• Triple bearing supported 10mm hardened main shaft
• 120 degree dual race ball bearing metal swashplate
• Self-centering clamping clutch/fan hub w/high efficiency fan shroud
• High quality DuPont® plastic injection mold w/strengthening fibers
• Stainless steel damper mounted bearing torque tube for high efficiency
• Ultra high strength torque tube gears
• Top to bottom supported tail pitch plate for improved accuracy
• Dual race ball bearing with thrust bearing supported tail blade grips
• Front mounted rudder servo with push/pull bell crank
• Carbon tail boom supports
• Sleek Pre-painted fiberglass canopy
• New lightweight landing gear

Specifications:

• Main Rotor Blade Diameter: 57.3 in / 145.5 cm (if using 640mm blades)
• Tail Rotor Blade Diameter: 10.25 in / 26.0 cm (92 mm Blades)
• Length: 49 in / 124.5 cm
• Height: 14.60 in / 37.0 cm
• Width: 4.5 in / 11.45 cm

Just Provide ( Items required to fly but not included )

• 1x 600mm - 640mm Main Blades
• 1x 6-Channel or better Radio Transmitter system capable of 120 degree eCCPM mixing.
• 1x 6-Channel or better Receiver and Receiver Battery.
• 1x 50-56 size Nitro Engine
• 1x Muffler
• 5x Standard or better Servos
• 1x Gyro (Heading Lock/Hold recommended) for flybar version, or 3-Axis Flybarless Gyro System for Flybarless version
• Nitro Fuel
• Starting Equipment
• RC Helicopter Tools