FLIGHT EVALUATION OF FLIGHT-PATH CONTROL FOR THE STOL APPROACH AND LANDING

Flight experiments have been conducted to assess requirements for flight-path control for glide-slope tracking and for control of the flare and landing, particularly as applied to powered-lift STOL aircraft. The research aircraft used to perform landing approaches on a 7. 5-deg glide slope to landings on a 30 X 518 m (100 X 1700 ft) STOL runway provided the capability for evaluating a wide range of flight-path control characteristics. The flight results identified flight-path overshoot, flight-path/airspeed coupling, and vertical velocity damping to be the dominant aircraft response characteristics that affect glide-slope tracking. The one prominent contribution to control of flare using pitch attitude was the short-term response. Specific design considerations for the effective thrust turning of the high-lift system, thrust response lags of the engines, and the aircraft loading and operating conditions are discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00218669
• Corporate Authors:

  American Institute of Aeronautics and Astronautics

  1290 Avenue of the Americas
  New York, NY  United States  10019
• Authors:
  • FRANKLIN, J A
  • Innis, R C
• Publication Date: 1978-1

Media Info

• Features: References;
• Pagination: p. 5-12
• Serial:
  • Journal of Aircraft
  • Volume: 15
  • Issue Number: 1
  • Publisher: American Institute of Aeronautics and Astronautics
  • ISSN: 0021-8669

Subject/Index Terms

• TRT Terms: Aircraft; Airspeed; Approach; Control; Engines; Flight control systems; Flight paths; Glide path systems; Landing; STOL aircraft; Tracking systems; Velocity; VTOL aircraft
• Uncontrolled Terms: Aircraft engines; Aircraft loading; Tracking
• Old TRIS Terms: Aircraft landing
• Subject Areas: Aviation; Operations and Traffic Management; Vehicles and Equipment;

Filing Info

• Accession Number: 00176647
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM