Form 9.B Project Summary

Chron: 972592

Proposal Number: 01.03-2281

Project Title: Detection of Icing Through Aircraft Parameter Identification

Technical Abstract (Limit 200 words)

The proposed development will result in the DIDS system, designed to detect an icing problem onboard an aircraft in flight from real-time identification of degradation in key aircraft dynamic characteristics and aerodynamic parameters. This will be implemented using cross-spectral methods to generate frequency response characterizations of aircraft input/response relationships. Icing will be detected from changes in a suite of characteristics and parameters over time. Icing degradations of key longitudinal parameters will be estimated including: drag coefficient, lift coefficient and lift curve slope, static margin, elevator effectiveness and elevator hinge moment for aircraft with reversible mechanical primary flight control systems. Lateral-directional dynamics would be considered in Phase II. Icing detection from the DIDS system would ultimately be fused with onboard ice detection sensor data and off-board meteorological data to improve the overall resolution, accuracy and reliability of advisories to the pilot. A primary innovation of the DIDS system is the direct estimation of aerodynamic parameters most fundamentally related to icing phenomena and to aircraft stability and control. A related innovation is the use of established flying qualities criteria to integrate the degradation estimates into a severity metric for the pilot.

Potential Commercial Applications (Limit 200 words)

The DIDS system will be marketed as a product together with related, highly technical, consulting services. The consulting services may range from training the customer in the use of the DIDS system to continually assessing and improving its effectiveness. The initial customer target will be the airline and business aviation sectors of the industry. Emphasis will also be placed on demonstrating the effectiveness of the system to the Federal Aviation Administration (FAA) and the National Transportation Safety Board (NTSB) with a view towards having the DIDS declared as a mandatory system on air carriers. We anticipate that the airlines as well as the FAA will require our consulting services to refine the software based on their specific requirements and practical needs. We anticipate an initial market penetration into the commuter airline and business aviation industry where the safety hazards due to icing are the greatest. There has been a rapid growth in the commuter airline industry following the adoption of the "hub-and-spoke" method of operation of the major airlines. There has also been rapid growth in the business aviation industry in recent times.

Name and Address of Principal Investigator (Name,

Organization Name, Mail Address, City/State/Zip)

Thomas T. Myers

Systems Technology, Inc.

13766 S. Hawthorne Blvd.

Hawthorne , CA 90250

Name and Address of Offeror (Firm Name, Mail Address,


R. Wade Allen

Systems Technology, Inc.

13766 S. Hawthorne Blvd.

Hawthorne , CA 90250