Guidance & Control

RoysDoon defense technology communications module with RF connectors and D-sub port, shown beneath stealth drones and satellite over mountainous terrain

An operational record behind the product.

Our founder developed navigation and autopilot systems that are used across the U.S. Air Force, Army, Navy, with platform experience including the BQM-167, BQM-177, MQM-178, and others. This gives RDT a practical foundation for the next integration: experience with the aircraft, the onboard systems, and the consequences of their interaction.

Product & Portfolio Exemplars

Black Royson Defense Technologies electronic enclosure with SMA connectors, hose fittings, and a multi-pin D-sub port

APEX \ Multi-vehicle autopilot

From hover to supersonic flight. From conventional aircraft to highly unconventional configurations. APEX (Advanced Precision & Extreme Control) incorporates our award winning design and advanced nonlinear control algorithms, and brings advanced path planning, navigation, guidance, and control into purpose-built flight hardware. Behind that product is flight-control experience spanning airplanes, delta wings, flying wings, helicopters, multicopters, and camera/sensor gimbals, with fixed-wing testing from Mach 0 to Mach 1.25 and ±10 g.

Our hardware is qualified against MIL-STD-810F (vibration, acceleration, humidity, rain, temperature, etc.), MIL-STD 461F (EMI) and ISO 9001:2015 standards. Our software is developed in accordance with recognized industry standards such as DO-178B. In keeping with aerospace standards, it also follows strict software versioning and traceability.

Our value is operational experience across the U.S. Air Force, Army, Navy, and many others.

Learn More

Anti-ship missile launching from a naval vessel over the ocean
3D trajectory plot showing an interceptor path, velocity vectors, and impact point at approximately 28 km altitude.

G&C Toolbox

Our advanced toolbox optimizes across launch, midcourse, and terminal guidance routines rather than treating each layer as an isolated software component — the result is high-fidelity software from target tracking to missile-intercept. Our broader control-development portfolio includes embedded autopilots with classical PID control as well as modern nonlinear command filtered backstepping control, and model-predictive-control for UAVs, cruise missiles, and interceptors. For over 20 years we have validated our algorithms through continuously improved hardware and flight testing.

Integrated flight visualization dashboard showing an attitude indicator, aircraft body attitude view, and 3D trajectory graph

Real autopilot hardware. Advanced autonomy. Flight-tested engineering.

The RDT Autopilot combines advanced path planning, guidance, and vehicle control in dedicated hardware built for fixed-wing, rotary-wing, and multirotor applications. This is not a flight-control concept waiting for an aircraft. It is a product backed by hands-on development, flight testing, and an engineering history that includes operational military systems.

Mach 1.25. ±10 g. Experience beyond the simulation.

Our fixed-wing experience has covered flight regimes from hover to Mach 1.25 and positive and negative load factors up to ±10 g. That experience connects the control law to the system it commands: the aerodynamic model, navigation solution, onboard software, sensors, actuators, and actual vehicle response. We bring that complete-system perspective to autopilot integration. The goal is not simply to make an algorithm run. It is to make the aircraft behave as intended—and understand why it does.

The stated test envelope applies to the relevant fixed-wing configurations. It is not a universal rating for every supported vehicle or every combination of speed and load factor.

Start with an autopilot. Build around your mission.

Bring us the vehicle, the operating envelope, and the autonomy requirements. RDT brings existing autopilot hardware and the engineering depth to connect it to the platform.