Elevating Aircraft Performance Analysis: STI Tools for Every Platform
Elevating Aircraft Performance Analysis: STI Tools for Every Platform
In the aerospace industry, the ability to extract meaningful performance insights is essential to maintaining safety, efficiency, and innovation. At Systems Technology, Inc. (STI), we provide advanced aircraft-agnostic analysis tools designed to empower engineers, program managers, and flight test professionals with actionable intelligence—regardless of platform type. From commercial transport aircraft to micro multi-copter drones, our solutions deliver validated, high-precision data that drives informed decision-making.
A Unified Framework for All Aircraft Types
STI’s performance analysis tools are designed to support a wide range of vehicles with a single, standardized framework. Leveraging decades of aerospace engineering experience, our software enables you to:
- Conduct rigorous performance assessments across fixed-wing, rotary-wing, and unmanned systems
- Identify optimization opportunities that enhance operational efficiency and system competitiveness
- Accelerate workflows through intuitive interfaces and consistent methodologies
- Make confident decisions with industry-trusted tools
Trusted by aerospace leaders, our solutions reduce risk, accelerate development, and elevate the quality of performance evaluation efforts.
FREDA: Frequency Doman Analysis for Advanced System Identification
FREDA (Frequency Doman Analysis) is STI’s proven solution for extracting frequency response data from time history records. Widely used in the aerospace, automotive, and industrial sectors, FREDA provides controls engineers with deeper insight into dynamic system behavior.
Key Capabilities:
- Comprehensive SISO and MIMO system identification
- Transfer function fitting from real-world flight test data
- Seamless integration into MATLAB environments for further customization
FREDA enables detailed evaluation of any system where input and output time histories can be recorded—offering a powerful foundation for flight control design and system validation.

HAWK: Comprehensive Handling Qualities and Pilot Workload Evaluation
STI’s Handling Qualities Analysis and Workload Assessment Kit (HAWK) builds on more than 65 years of expertise in handling qualities evaluation. Developed for fixed-wing, rotorcraft, and UAS platforms, HAWK enables predictive assessments of flight dynamics, pilot workload, and controllability through a rich suite of analytical tools.
HAWK supports:
- Predictive HQ evaluations and boundary analysis based on established criteria
- In-depth Pilot-Induced Oscillation (PIO) metrics and diagnostics
- Wavelet-based pilot activity analysis for time-varying workload assessment
- Integrated GUIs for Mission Task Element (MTE) and test reporting
- MATLAB-based customization for advanced users
HAWK supports both simulation and flight test analysis with accuracy and confidence—whether during system development or certification.
STI remains at the forefront of aerospace performance analytics by delivering robust, validated tools that meet the demands of modern flight systems. Whether you’re developing next-generation aircraft or enhancing legacy platforms, our solutions provide the clarity and confidence required to lead in a complex, high-performance environment.

Discover how STI can elevate your performance analysis.
Contact our team to learn more: https://www.systemstech.com/contact/

About Systems Technology Inc.: Systems Technology Inc. (STI) is a technology company at the forefront of innovation, specializing in aviation and simulation solutions. With a mission to advance safety and efficiency in aviation, STI develops cutting-edge technologies to meet the evolving needs of the aerospace industry.