The X-400 micro belt drived helicopter is a high quality machine.
It was designed with a unique two sided frame design and all moving parts rotate over bearings allowing for super smooth control.
The X-400 is very similar to the T-Rex 450 and so many of the composites abd upgrades are compatible these two machines.
The X-400 helicopter has a super class belt tail system with very smooth operating cyclic control and the overall machine has exellent flying characteristics.
High-end upgrades such as collective pitch,a beltdriven tail rotor,aluminium frame and tailboom and full ball bearings are all here in a compact,electric powered heli.
That means you can enjoy a full-function,3D capable machine.

The lightweight composite main rotor head is supported by a solid main shaft, and features a mechanical CCPM control system. The control arms are equipped with ball bearings

Precise tail pitch is provided by a direct servo linkage. The ball bearing-equipped gearbox is made of lightweight composites, and the belt drive system is strong, efficient and quiet.

The aluminum frame provides rigidity without excess weight, and is designed for brushless motors. Auto rotation equipped, with a driven tail for total control.