helicopter toy Knight 50 3D Heli Combo

What we liked about the Knight 50 Sport:

    Flies well with inexpensive electronics
    Metal swashplate and headblock
    Dual pin tail rotor pitch mechanism
    Belt drive (quick and easy to repair)
    Driven tail for tail control during autos
    Fully ball bearing supported controls
    Thrust bearings in both main and tail rotor heads
    Responsive CCPM controls
    Very quick to build, no need for much disassembly,
    locktite on in most necessary places
    3D ready out of the box, fully capable
    Lightweight 50 class heli, at only 7.8 pounds
    Inexpensive replacement parts
    Modular design
    Accepts standard size servos

Features

    Easy Maintenance
    Easy Assembly
    Large Pitch Range
    Hardened Main Shaft
    Hardened Tail Shaft
    More Than 50 Bearings
    Precise Controlling
    Modular Design
    Aluminum Main Rotor Hub
    Belt Driven Tail Assembly
    Thrust Bearings in Main and Tail Rotor Grips
    3D Rated Head Dampeners (stiff) Installed
    Lightweight Main Frame and Servo Tray
    Easily Accessible Engine
    Autorotation Bearing with Driven Tail Gear
    120 Degree CCPM Swashplate Control
    Dual Pin Zero-Slop Tail Pitch Mechanism
    Ball Bearing Supported Washout Arms and Links
    Wide 25 degree Collective Pitch Range
    Ultra Wide 95 degree Tail Pitch Range
    35 degree Flybar Tilt Range


Specifications

    Length: 1270mm (50.0")
    Height: 426mm (16.8")
    Width: 217mm (8.5")
    Main Rotor Diameter: 1360mm (53.5")
    Tail Rotor Diameter: 250mm (9.8")
    Take-off Weight: 3.55 kg (7.8 pounds)
    Gear Ratio: (engine : main rotor : tail rotor) 8.7 : 1.0 : 5.0
    Engine Size: 8.2cc (0.50 ci)