Variable Cycle Engine Evaluations for Supersonic V/STOL Fighters. Management Summary Report.
Abstract
Variable cycle engines (VCE) have been evaluated using advanced V/STOL fighter designs. The VCE payoffs were assessed in terms of total weapon system cost effectiveness and results indicate that they offer potential benefits in supersonic V/STOL fighters. A systematic engine/airframe evaluation procedure was developed and used to assess interactions for advanced engine concepts in L + L/C aircraft designs. The evaluation procedure provides a rapid and inexpensive technique for evaluating engine concepts considering a large matrix of engine and airframe design and sizing variables. The procedure was used to establish a parametric data base using both fixed cycle turbofans and variable geometry turbine turbojets. Specific engine/airframe designs were then selected for detailed comparisons. Engine/airframe design evaluations were also conducted using a variable cycle turbofan engine capable of being used with both L + L/C and L/C aircraft. These aircraft designs were compared to the fixed cycle turbofan and variable geometry turbine turbojet aircraft designs in terms of TOGW, performance, life cycle cost and operational flexibility. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1978
- Accession Number
- ADA053362
Entities
People
- D. G. Glennie
- J. E. Cupstid
Organizations
- McDonnell Aircraft Corporation