Dual Redundant Control and Sensors

The nxFCU CSC is the baseline nxFCU, offering a tightly integrated dual redundant navigation, flight control and mission management solution for UAVs. Ideal for high-end Tactical and Mini UAVs, this rugged, single failure tolerant unit, with dissimilar hardware and safety certifiable software, provides the ultimate in automation reliability. The nxFCU was specifically optimised for Size, Weight and Power (SWaP), without compromising ruggedness, reliability or certifiability of the solution. The result is a highly functional yet physically compact design able to meet the strict unmanned aviation regulations of the future.

The nxFCU CSC is ideally suited to Tactical and Mini UAVs for both civil and military applications. Integrated navigation sensors, a wide range of highly configurable I/O and embedded LOS and BLOS communication links, provide it with the flexibility and capability of meeting almost any automation requirement. Reliability is ensured through a rugged hardware design and a safety certifiable software architecture combined with sensor and computational redundancy, making the nxFCU CSC the responsible choice for UAV system integrators.

The nxFCU CSC is also available with integrated dual redundant communication links (nxFCU CSMC) and compact (nxFCU Compact) configurations. Contact S-PLANE for further information and support in selecting and configuring an nxFCU for your system.



  • Integrated navigation, flight control and mission management unit
  • Multi-constellation GNSS, air-data and inertial sensors
  • Wide range of configurable I/O (Serial, Ethernet, GPIO, PWM, CAN, ADC)


  • Fixed and rotary wing UAVs
  • Civil/Military Tactical and high-end Mini UAVs
  • SWaP sensitive unmanned systems

Key Advantages

  • Rugged, redundant, reliable and environmentally qualified design
  • Small, light-weight and low power (SWaP sensitive)
  • Safety certifiable software architecture (DO-178C)
  • Pairing-enabled for optional distributed redundancy
  • Customisable electrical and mechanical interfaces
  • Very wide input voltage range

Technical Specifications

Navigation GNSS/AD-Aided INS (EKF)
Control Fixed & Rotary Wing
Mission Waypoints, Loiter, Follow
Health Monitoring PBIT, CBIT, IBIT
Computational Redundancy Yes (Dual Flight Control)
Certification DO-178C SW Certifiable
GNSS Receiver Yes (Redundant)
GNSS Accuracy (Differential) < 2 cm
GPS & GLONASS Tracking Yes
IMU & Magnetometer MEMS (Redundant)
Air-Data 150 KIAS, 18 kft
Serial (RS-422/485/232) 16x
GPO / PWM 16x
GPI / Input Capture 16x
Ethernet 1x Gigabit
CAN 1x 1 Mbps
ADC 4x 16 Bit
Dimensions (H x W x D) 79 x 128 x 122 mm
Mass 1 090 g
Input Voltage 6 to 36 VDC
Power (Typical) 20 W
Regulated Servo Power External
Operating Temperature -40 to +71°C
Storage Temperature -40 to +105°C
Vibration & Shock MIL-STD-810G