Safe and Certifiable Flight Control for UAS

Flight Control Units (FCU) for Mission-Critical UAS Platforms​

Safe and Certifiable Flight Control for UAS

Flight Control Units (FCU) for Mission-Critical UAS Platforms

Certifiable Autopilots and Flight Control Systems for UAS

PrimeCor designs and develops custom Flight Control Units (FCU) and Flight Control Systems (FCS) for UAS, focused on certification readiness, operational reliability, and true scalability across unmanned aerial platforms.

From lightweight UAS to heavy-lift aircraft platforms, our patented modular hardware and software architectures reduce technical risk, accelerate system integration, and deliver safe, flight-proven control systems validated in real operational environments.

Autopilots Engineered for Your Mission

We apply a systems engineering approach that reduces development time, project uncertainty, and ensures that every component of the flight control system in the aircraft meets rigorous performance, safety, and certification requirements.

Flight control system development phases

Technical analysis and engineering consultancy

Mission profile, concept of operations, UAS platform, and payload assessment to define the optimal system scope.

Requirements definition

Functional, safety, and certification requirements for the Flight Control System.

System design

Hardware and software architecture optimized for reliability and efficiency.

Algorithm development


Flight control, navigation, guidance, and mission management tailored to each platform and mission.

Integration, verification, and validation

Continuous support as an extension of the customer’s engineering team.
Structured requirement-based verification processes with full traceability and documented evidence, aligned with aerospace systems engineering best practices. This approach facilitates technical audits and formal certification processes when required.

Flight testing


Validation in real operational conditions to ensure system maturity.

PrimeCor Flight Control Units (FCU)

FCU-ALPHA

Autopilot for heavy-lift UAS – SAIL III & IV

Advanced control, high reliability, and scalable architecture for mission-critical operations.

The FCU-ALPHA is an integrated navigation, flight control, and mission management unit designed for heavy-lift UAS and high-demand operational environments.

Its architecture enables scalable redundancy while maintaining a compact, weight-optimized design. Integrated dissimilar monitoring provides a high level of operational safety in accordance with applicable aeronautical standards (EASA and NATO).

  • Articulated, semi-articulated, and rigid-rotor helicopters
  • Fixed-wing aircraft
  • Multirotors
  • Hybrid multirotor–fixed-wing platforms
  • Automatic waypoint navigation
  • Automatic take-off and landing (ATOL)
  • Configurable nominal and contingency trajectories
  • Geofencing and geocaging
  • Advanced mission management and recovery logic
  • GPS-INS sensor fusion with tolerance to temporary GPS loss
  • Native DGPS and RTK integration
  • Third-party sensor integration with:
    • Comparison and voting against PrimeCor sensors
    • Custom sensor fusion development for customer-specific sensors
  • Support for multiple standard UAS buses and protocols
  • Architecture adaptable to platform-specific requirements
  • Dedicated interfaces defined per program

FCU-BRAVO

Autopilot for lightweight or expendable UAS – SAIL II

Simplicity, efficiency, and reliability for low-risk platforms.

The FCU-BRAVO is a compact, lightweight autopilot optimized for cost, size, and power consumption, while retaining PrimeCor’s advanced navigation and control capabilities.

Designed for platforms where simplicity is critical, it incorporates an independent monitoring architecture that ensures an appropriate level of operational safety.

  • Conventional helicopters
  • Fixed-wing aircraft
  • Multirotors
  • Hybrid multirotor–fixed-wing platforms
  • Automatic waypoint navigation
  • Automatic take-off and landing (ATOL)
  • Nominal and contingency trajectories
  • Geofencing and geocaging
  • Integrated mission management and emergency recovery
  • GPS-INS fusion with tolerance to temporary GPS loss
  • RTK-compatible with ground reference station
  • Configurable interfaces based on UAS architecture
  • Support for industry-standard protocols
  • Adaptation to aircraft-specific requirements

Flight-proven Experience in Flight Control Systems

Our autopilots operate on real UAV platforms, supporting mission-critical operations in demanding environments.

Flight Control Systems Aligned with UAS Certification Requirements

We design our FCU and FCS to strictly comply with the regulations and certification standards applicable to each type of UAS operation.

By avoiding unnecessary over-certification, we deliver systems that are fit for purpose, cost-competitive, and compliant without compromising safety.

BEYOND CONFIGURABLE AUTOPILOTS

PrimeCor does not adapt commercial off-the-shelf autopilots.
We engineer the flight control system around your mission, platform architecture, and certification objectives.

Real compliance with your standards.

Custom FCUs designed from the ground up to meet the exact protocols and requirements of your mission.

Efficiency and risk reduction.

Optimized functionality, reduced software complexity, and lower operational risk.

Scalability and technical transparency.

Open, evolvable flight control platforms developed by an in-house engineering team.