MCRUER: Accelerating Handling Qualities Evaluations for Urban Air Mobility Certification

Since 2018, Systems Technology, Inc. (STI) has collaborated with the Federal Aviation Administration (FAA) to develop Means of Compliance (MoC) methods for electric Vertical Take-Off and Landing (eVTOL) vehicles, as outlined in DOT/FAA/TC-22/49. Central to our approach is the Mission Task Element (MTE) methodology, which establishes repeatable tests derived from the vehicle’s Concept of Operations (CONOPS). This methodology effectively evaluates key aircraft attributes, including mission performance and pilot workload. 

Recent publications, including DOT/FAA/TC-23/59 and EUROCAE ED-295, have refined test methodologies and processes for assessing the handling qualities of eVTOL vehicles. Given the high costs and logistical challenges associated with constructing and maintaining traditional test courses, STI is developing innovative methodologies to facilitate more accessible and customizable evaluations. Our solutions are designed to enhance ease of use and adaptability, addressing the diverse needs of the eVTOL industry.

Introducing the MCRUER System

In collaboration with the National Aeronautics and Space Administration (NASA), STI has developed the Means of Compliance Requirements for UAM Evaluations and Ratings (MCRUER) system. This tablet-based cockpit display technology, developed under a Phase II Small Business Innovation Research (SBIR) program, addresses flight testing and compliance challenges by providing test pilots with virtual Mission Task Element (MTE) courses for handling qualities evaluations.

The MCRUER system utilizes real-time flight data or simulation inputs to drive a tablet-based display, presenting virtual MTE courses to both the pilot and flight test engineer. This approach reduces the need for extensive physical test courses and external infrastructure, accelerates the evaluation process through rapid prototyping new course designs, and helps manage costs associated with operational constraints.

Key Features and Performance of the MCRUER System

• Tablet-based display: A versatile platform for presenting MTEs and recording task performance, pilot commentary, and handling qualities ratings, accommodating both live and simulated data inputs. 

• Data Acquisition System (MDAS): Collects and processes flight data, including additional aircraft signals, to drive the MCRUER displays and assess MTE performance accurately. 

• Enhanced testing flexibility: Evaluate vehicles under various conditions without requiring physical test courses. 

• Versatile application: In addition to pilot-in-the-loop flight testing, MCRUER supports simulation and unmanned applications.

Flight Test Results Validate MCRUER System Efficiency

Recent flight tests with the National Research Council Canada’s variable stability Bell 412, in collaboration with Bolder Flight Systems (BFS), have demonstrated that pilots successfully conducted MTEs using both physical courses and the MCRUER system.  

Results indicated a strong correlation in handling qualities and performance metrics, validating the MCRUER system as a reliable and efficient tool for MTE evaluations.

Streamlining Vehicle Certification with the MCRUER System

The MCRUER system offers an efficient, adaptable solution for assessing new vehicle designs. Its precision in matching traditional live MTE evaluations makes it an invaluable asset for both current and future certification efforts. As the UAM market continues to expand, the MCRUER system will be instrumental in ensuring the safe and timely introduction of innovative air mobility solutions.

For more information on how the MCRUER system can enhance your certification process, contact us today: 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.