Bird Strike Committee Proceedings
Date of this Version
9-2011
Document Type
Article
Citation
Presented at 2011 Bird Strike North America Conference, September 12-15, 2011, Niagara Falls, Ontario, Canada.
Abstract
Overview
- Aim: to develop a means of assessing potential benefit of engine certification rule changes
- Fleet cycles past and future
- Bird rule changes through time
- Bird strike distribution considerations
- Monte-Carlo method
- engine capability for different rules
- Fleet risk through time
- Rate of introduction of new products
- Fleet risk in the future
- Conclusions and recommendations
- Note: predictions made regarding future fleet mix are solely the judgement of the author
Fleet Aircraft Cycles Per Year
- Increase is sustained through time and predictable
- Trend seems to recover from major setbacks
Fleet Cycles Per Year –Looking Forward
- 40 million flights per year by 2030
- Will have doubled since start of century
- But what lies behind the curve?
Bird Ingestion Certification Rule History
Section 33.13/19 –Feb 1965
- Original Rule
- Small, medium, large birds defined
Section 33.77 A6 –Oct 1974
- Concept of critical areas on engine introduced for large bird
- Run-on after ingestion mandated
Section 33.77 A10 –Mar 1984
- Critical areas expanded to all bird sizes
Section 33.76 A20 –Dec 2000
- Medium bird increased to 2½lb
- Ingestion at critical conditions
- Very significant increase in capability
Section 33.76 A24 –Nov 2007
- Large Flocking Bird added to address Goose population growth
COinS
Comments
Copyright 2011 Reed.