The S900’s arms and landing gear are made of sturdy carbon fiber, greatly reducing weight while increasing stability and strength. This enables a long flight time without sacrificing performance.<br> With arms that fold in to save space, the S900 is built to be taken wherever you need to go. Then when you want to fly, it can be ready to go in just a few minutes. Never before has a professional hexacoptor been so portable and easy to transport.<br> The upper center board can be removed, allowing easy access to install your flight controller and IMU, and giving you a convenient way to setup the power distribution system. Even installation of your main controller, iOSD, Lightbridge, or any other accessories is faster and easier than ever before. This new center board structure is perfectly compatible with the DJI WKM and A2 flight controllers.