Icing Certification of Civil Aircraft Engines

Aeroengine icing is an unwanted phenomenon which can normally lead to the hazardous effect to the power of aircraft during routine flight. To be on the safe side, each civil aircraft engine model must fully meet the strict requirements of icing operation and ice ingestion in the authoritative certification program, and usually this could be demonstrated by using the experimental approach. Base on a concrete engine model, this paper aims to provide an acceptable method of compliance to the engine icing operation and ice ingestion requirements which are demanded by the US airworthiness standards of aircraft engines, i.e., Federal Aviation Administration 14 CFR Part 33, and introduce the application of critical point analysis and experimental arrangement in engine icing certification. Through the textual description, it would be greatly helpful to the industrial community to evaluate the engine anti-icing capability and conduct the ice-slab ingestion demonstration in engine design process.