10. Modular Construction:

The closed-loop torque-balanced coaxial rotor system eliminates torque reactions on the fuselage, thus making the fuselage independent from the rotor-transmission-engine combination. And in the EzyCopter, all four controls (longitudinal and lateral cyclic, collective and directional control) are independent of each other and completely incorporated in the lifting rotor system. This feature makes it possible to consider the engine, transmission, rotor and its controls as a major subassembly package yields the following advantages, further reducing acquisition costs:

1. Design and Manufacturing Flexibility
2. Lower Structural Weight
3. Growth Potential
4. Modular Construction

11. Growth Potential

This is one area that a coaxial helicopter promises the most. As stated above, the fuselage design of the coaxial is purely functional and independent of the size of the lifting system. Therefore, increase in size of one of the major subassemblies does not affect the other.

The coaxial transmission is naturally suited for multi-engine inputs without creating external torque reaction problems and with only small weight increase per additional engine. This feature permits proportionately small change in the transmission for substantial growth. This feature of the EzyCopter is not possible or available in the single rotor or the other multi-rotor configurations without major modifications and associated costs.

The flying qualities of the EzyCopter coaxial are such as to permit higher disc loadings than single rotor helicopter without affecting controllability and fuselage design; thus permitting increase in lift capability without materially affecting the envelope of the vehicle, utilizing a minimum of engine horsepower.