Feedback Control Loading Systems - Software Services

Math Model Software for Aircraft

Servos & Simulation has developed advanced software for feedback control loader systems that accurately replicate the flight controls of a wide range of aircraft. Using a precise mathematical model, the software simulates the flight control system specific to each aircraft, ensuring high fidelity and realism in every simulation. For more information on our feedback control loader product line, please click here.

Math Model Software - Supported Features

Each model typically includes the following features to enhance simulation accuracy:

Feel Spring
Breakout
Stops
Friction
Damping
Force Trim (for helicopters)
Beep Trim (for fixed-wing aircraft)
Stick Shaker
Stick Pusher
Coupling between Axes
Autopilot
Boost actuators with hydraulic failure modes
Aerodynamic forces on control surfaces
Trim tab and servo tab operation
Separable aileron controls (for wheels)
Separable elevator controls (for columns)

Additionally, boost failure modes usually include manual reversion, allowing the aircraft to remain flyable. Separable aileron and elevator controls require a dedicated control loader actuator for each wheel or column. For systems with dual controls, such as two-wheel or two-column setups, connection and disconnection are managed through software.

In aircraft with fore and aft cockpits, like the Apache, the flight controls in the forward cockpit can be connected to the aft cockpit either mechanically or via software—providing flexibility in simulation design.

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Returned Variables

The software returns a comprehensive set of variables to the host computer, including but not limited to:

Flight control roll angle (wheel or stick)
Flight control pitch angle (column or stick)
Flight control pedal position
Flight control collective stick position (helicopters only)
Aileron angle
Elevator angle
Rudder angle

Additional variables are available upon request to meet specific simulation requirements.

Embraer EMB-120

Beechcraft King Air

Boeing 737 Loft

Boeing 737 JTS

AT-3

Cessna T-37

Cessna T-38 Talon

Beechcraft King Air C-90

Beechcraft Baron

Northrop F-5 Tiger

Piper Cheyenne Pa-42

Boeing C-17 Globemaster

Lockheed C-141 Starlifter

Cessna 421

Beechcraft Super King Air B200

Douglas A-1 Skyraider

Boeing B-52 Stratofortress

ACT-02

Beechcraft T-34 Mentor

McDonnell Douglas AV-8B Harrier II

Bombardier CL-415 Water Bomber

McDonnell Douglas DC-9

JSTARS E-8C

Cessna Ironbird Jet

Bombardier CRJ (Canadian Regional Jet)

McDonnell Douglas F-15 Eagle

Dornier 328

Northrop Grumman EA-6B Prowler

Beechcraft C-12 Huron

Lockheed C-130 Hercules

Lockheed F117 Nighthawk

Boeing KC-135 Stratotanker

Robinson R-44

Airbus HH-65 Dolphin

Sikorsky MH-60 / SH-60 Seahawk

Bell B212

Bell UH-1N Twin Huey