7. Freedom from control cross-coupling:

Control cross-coupling exists in all other rotor configurations, causing control complexity, dangerous flight attitudes and vibration. Lack of control cross-coupling in the EzyCopter coaxial helicopter will yields the advantages as follows: 

1. Only ONE control is required for transnational flight along any axis;

2. Control along each axis is powerful, symmetrical, and unaffected by the controls along the other axes; 

3. Comparable translational accelerations in all directions are obtainable; 

4. Precision handling ability with excellent control– even under adverse cross wind conditions and;

5. Exact and excellent hovering positioning is excellent due to the symmetry of the coaxial rotor system.

8. Economic Tooling and Manufacturing Costs:

The EzyCopter coaxial has an advantage over the other configurations because of its lower empty weight; the following two features further amplify this advantage:

1. The symmetry of the rotor system and the transmission reduces approximately by one half the number of individual components as compared to single rotor configuration;

2. The freedom of torque reactions of the fuselage calls for simpler fuselage structural design, resulting lower tooling and manufacturing costs, benefiting both the manufacturer and the users.

Figure 16 A Typical Coaxial Rotor System

9. Optimal Transmission Design:

In a coaxial configuration, the inherent feature of splitting the power input into two paths results in a transmission design internally balanced, compact and capable of handling greater horsepower per engine input than any other configuration. The design is naturally suited for multi-engine inputs without creating external torque reaction problems. This unique feature of the coaxial transmission achieves greater significance as the size of engines can be increased as required to satisfy the need for individual requirements.

Figure 17 A Typical Coaxial Transmission