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advanced concept studies for supersonic commercial transports entering service in the 2018 to 2020 periodLockheed Martin Aeronautics Company (LM), working in conjunction with General Electric Global Research (GE GR), Rolls-Royce Liberty Works (RRLW), and Stanford University, herein presents results from the "N+2 Supersonic Validations" contract s initial 22 month phase, addressing the NASA solicitation "Advanced Concept Studies for Supersonic Commercial Transports Entering Service in the 2018 to 2020 Period." This report version adds documentation of an additional three month low boom test task. The key technical objective of this effort was to validate integrated airframe and propulsion technologies and design methodologies. These capabilities aspired to produce a viable supersonic vehicle design with environmental and performance characteristics. Supersonic testing of both airframe and propulsion technologies (including LM3: 97-023 low boom testing and April-June nozzle acoustic testing) verified LM s supersonic low-boom design methodologies and both GE and RRLW's nozzle technologies for future implementation. The N+2 program is aligned with NASA s Supersonic Project and is focused on providing system-level solutions capable of overcoming the environmental and performance/efficiency barriers to practical supersonic flight. NASA proposed "Initial Environmental Targets and Performance Goals for Future Supersonic Civil Aircraft". The LM N+2 studies are built upon LM s prior N+3 100 passenger design studies. The LM N+2 program addresses low boom design and methodology validations with wind tunnel testing, performance and efficiency goals with system level analysis, and low noise validations with two nozzle (GE and RRLW) acoustic tests.
Document ID
Document Type
Contractor Report (CR)
Morgenstern, John
(Lockheed Martin Aeronautics Co. Palmdale, CA, United States)
Norstrud, Nicole
(Lockheed Martin Aeronautics Co. Palmdale, CA, United States)
Sokhey, Jack
(Lockheed Martin Aeronautics Co. Palmdale, CA, United States)
Martens, Steve
(Lockheed Martin Aeronautics Co. Palmdale, CA, United States)
Alonso, Juan J.
(Lockheed Martin Aeronautics Co. Palmdale, CA, United States)
Date Acquired
August 27, 2013
Publication Date
February 1, 2013
Subject Category
Aircraft Design, Testing and Performance
Report/Patent Number
Funding Number(s)
WBS: WBS 475122.
Distribution Limits
Public Use Permitted.

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NameType 20130010174.pdf STI