NASA STTR 2006 Solicitation


RESEARCH SUBTOPIC TITLE:Advanced Concepts for Flight Research
PROPOSAL TITLE:Implementation of Extreme STOL capability in cruise efficient aircraft

NAME: Aerotonomy, Incorporated NAME:Georgia Tech Research Institute
ADDRESS:117 Herron Street ADDRESS:505 Tenth Street NW
CITY:Fort Oglethorpe CITY:Atlanta
STATE/ZIP:GA  30742-3127 STATE/ZIP:GA  30332-0420
PHONE: (706) 413-1582 PHONE: (404) 385-6705

Chris S. Gibson

TECHNICAL ABSTRACT ( Limit 2000 characters, approximately 200 words)
Aerotonomy, Incorporated and the Georgia Tech Research Institute (GTRI), will develop enabling technologies for an aircraft that is capable of Extreme Short Takeoff and Landing (ESTOL), while retaining efficient transonic cruise performance, by applying a comprehensive, systems-based design and analysis approach to innovative combinations of active flow control methodologies. The development of this technology directly supports the four strategic goals of NASA's Next Generation Air Transportation System (NGATS), namely 1) increased capacity, 2) improved safety and reliability, 3) increased efficiency and performance, and 4) reduced energy consumption and environmental impact. Individual circulation control technologies have been explored over the years, and have been demonstrated to provide highly effective force and moment augmentation and improved control capabilities. However, previous investigations generally did not focus on combining these CC systems into a cohesive and functional aircraft subsystem, nor did they examine CC impacts on other aircraft subsystems or overall integration issues. The primary innovation in the proposed project will be an optimal Combined Circulation Control (C3) system that maximizes net CC performance benefits over all flight phases, determined through a comprehensive set of systems-impact trades, including examinations of impacts on power requirements, propulsion system performance, noise characteristics, cost, reliability and aircraft weight.

POTENTIAL NASA COMMERCIAL APPLICATIONS ( Limit 1500 characters, approximately 150 words)
The technology proposed herein directly supports all four of NASA's Next Generation Air Transportation System (NGATS) strategic goals, namely: 1) increased capacity, 2) improved safety and reliability, 3) increased efficiency and performance, and 4) reduced energy consumption and environmental impact. Also, Panel B (Propulsion and Power) of the NASA funded National Research Council (NRC) Decadal Survey on Civil Aeronautics recommended ESTOL capability as a way of addressing the NGATS goals.
The technology developed in this project will have application to ESTOL-capable small transport aircraft with efficient transonic cruise capabilities, thereby increasing capacity and efficiency of the air transportation system by creating opportunities to develop airports in areas where they would have previously been unfeasible, and by enabling use of existing shorter runways at airports that are now underutilized.
Also, these technologies have application to planetary aircraft for atmospheric science/exploration on planets where density and dynamic pressure are very low, such as Mars, Io, Titan, and Venus. The super-circulation technologies developed in this project for ESTOL applications may enable these aircraft to operate efficiently with greater payload capacity at lower dynamic pressures.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS ( Limit 1500 characters, approximately 150 words)
This technology has potential applications in commercial airliners, business jets, and regional transports. In general, equipping these aircraft with cruise-efficient high-lift devices can enhance airport options, give the user more valid runway choices at existing airports, and help alleviate the noise problem near airports by allowing steeper climb-outs and approaches. Manufacturers of these aircraft include Boeing, Gulfstream, and Cessna, among others.
There are many obvious military applications of the proposed technology. Some of these include ESTOL cargo and troop transport aircraft and shipboard aircraft, including the Navy UCAV. Super-circulation can be an enabling technology for launching and recovering medium and large UAVs from short and unprepared fields, without requiring specialized launch and recovery equipment and without incurring large cruise performance penalties due to conventional high lift systems.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Aircraft Engines
Airport Infrastructure and Safety
Operations Concepts and Requirements

Form Printed on 09-09-06 13:11