Steam AK420 3D RC Helicopter Kit / BNF With Blades

Specifications Type Direct Drive Motor Helicopter ModelMain Blade Length 380 420mmTail Blade length 56 74mmCyclic Servos Micro size Cyclic ServosTail Servo Mini size Tail ServoRecommended speed controller 6S 60 85AmpsRecommended battery 6S 2400 2800mAhRecommended battery weight 350gRecommended Motor Series 3120 3220Recommended Motor Outer Diameter ≤43mmMaximum battery size 50x38x115mmWeight No Power System ≈650gWeight Include blade and canopy ≈750gMotor Tooth 12TBelt Main Gear 75TMain Teeth of a Belt 81TBelt Tail Gear 20TFeatures The painted hood is made of ultra thins fiberglass fiber and the overall streamlined wrapping and fitting design brings good aerodynamic performance The integrated tripod is made of high strength reinforced plastic material injection molding with an overall low lying streamlined design multiple mortise and tenon design and the hood card position is increased Without increasing the weight the structural strength is effectively improved The metal large propeller clamp is matched with a double hole large propeller clamp arm to obtain axial and radial high strength locking This is an innovative patented design The inclined ball head mounting hole can have two sizes of ball head mounting holes of 23 5 24 5MM at the same time which can make the ball head produce a subtle change of 1MM from the center link to correspond to the required flight feel The double hole design can bring high cost performance of the product When