Flight Controller Stabilizing Gyroscope w/ M8N GPS Module APM 2.8 for FPV RC Airplane Note: GPS must be connected outdoors or it may not work. Every time you change the aircraft accessories, please do the throttle stroke calibration, remote control calibration, and gyroscope calibration. If the GPS module is connected indoors, the flight control can't start because there is no GPS signal indoors to self-test. For indoor tuning, the GPS module must be removed. Another very important point, before the first flight, you must do the level calibration and remote control calibration, otherwise the aircraft will be out of control. The Sparrow Flight Control is a new flight control designed for entry-level fixed-wing users. The model setting and parameter adjustment are simple and clear, the user can adjust the setting more intuitively; Abandoning the traditional fly control complicated wiring form, using a special connector, the input end wire is all integrated together, and the plug can be done at one time; flight performance is more optimized, multiple models supportted, multiple flight modes to meet all user needs. Features: 1. Support "vertical tail", "V tail", "delta wing" models, model settings are more intuitive. 2. Supports "horizontal mode", "final mode", "fence mode", "home mode", "manual mode" 5 flight modes, switch freely, flight experience guaranteed. 3. Standard high-precision GPS module, faster and more accurate positioning. 4. Small size, 5 in 1 input, 1 plug to get 5 wiring, wiring installation is more convenient. Specification: Item name: Flight Controller Size: about 32.5*27*11mm Weight: about 10g Pacakge list: 1 x Sparrow Flight Controller 1 x GPS Module 1 x Input wires 1 x Screwdriver