IMPROVED RESISTANCE TO ENGINE BIRD INGESTION

An analytical design method capable of quantitatively evaluating and ranking rotor blades for resistance to bird impact damage was investigated. This method was used to design blades having sufficient tolerance to meet the bird-ingestion requirements of FAR 33.77 for turbofan engines in the 6800 to 1600 lbf thrust class. The design procedure was also used for the preliminary design of a damage resistance boron/aluminum composite fan blade for the 6800 lbf thrust class engine. In addition, two protective devices designed to prevent an ingested bird from striking sensitive engine parts were presented. (Author)

• Corporate Authors:

  Avco Lycoming Division

  550 Main Street
  Stratford, CT  United States  06497
• Authors:
  • Kaehler, H B
• Publication Date: 1977-3

Media Info

• Pagination: 233 p.

Subject/Index Terms

• TRT Terms: Aerodynamics; Aluminum; Aviation safety; Bird strikes; Birds; Blades (Machinery); Boron; Composite materials; Compressors; Dynamic loads; Economic analysis; Fans; Loss and damage; Protection; Rotor blades; Safety equipment; Shrouded propellers; Test facilities; Test procedures; Tolerances (Engineering); Turbofan engines
• Uncontrolled Terms: Aircraft safety; Experimental design; Protective equipment
• Old TRIS Terms: Aerodynamic characteristics; Damage control; Mission profiles; Resistance; Tolerances mechanics
• Subject Areas: Aviation; Economics; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00168510
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA/RD-77-55 Final Rpt.
• Contract Numbers: DOT-FA76WA-3806
• Files: TRIS
• Created Date: Dec 27 1978 12:00AM