The influences of bypass ratio variation on runway performance of jet airplanes.

• Ano de defesa: 2004
• Autor(a) principal: Rodrigo Figueira Mourão
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: eng
• Instituição de defesa: Instituto Tecnológico de Aeronáutica
• Palavras-chave em Português: Motores Turbofan; Pistas (de pouso e decolagem); Razão de diluição; Corrida de decolagem; Desempenho de aeronaves; Turbinas a gás; Engenharia aeronáutica; Engenharia mecânica
• Link de acesso: http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=612

The influences of bypass ratio variation of turbofan engines in airplane runway performance are investigated more deeply in this work utilising a take-off analysis software developed by Ishizuka (2003). An initial study was carried out by Mourão, Negrão and Barbosa (2003). The results are analysed and discussed according to the operational feasibility of operators and technical feasibility of engine manufacturers. The analysis is based on comparisons of gains/losses in take-off distance, accelerate-stop distance and take-off weight for a range of bypass ratio values. Also, suggestions for future studies and researches are given his document is intended also to provide satisfactory background information of the take-off process and its mandatory regulations (FAR Part25, 1998) as much for commercial airplanes as for military airplanes. The aim is to contribute to readers' knowledge interested instudying more deeply the particularities of this specific flight phase and improving its operational safety.