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Subsonic Ultra Green Aircraft Research: Phase 2This report summarizes the hybrid electric concept design, analysis, and modeling work accomplished by the Boeing Subsonic Ultra Green Aircraft Research (SUGAR) team, consisting of Boeing Research and Technology, Boeing Commercial Airplanes, General Electric, and Georgia Tech.Performance and sizing tasks were conducted for hybrid electric versions of a conventional tube-and-wing aircraft and a hybrid wing body. The high wing Truss Braced Wing (TBW) SUGAR Volt was updated based on results from the TBW work (documented separately) and new engine performance models. Energy cost and acoustic analyses were conducted and technology roadmaps were updated for hybrid electric and battery technology. NOx emissions were calculated for landing and takeoff (LTO) and cruise. NPSS models were developed for hybrid electric components and tested using an integrated analysis of superconducting and non-superconducting hybrid electric engines. The hybrid electric SUGAR Volt was shown to produce significant emissions and fuel burn reductions beyond those achieved by the conventionally powered SUGAR High and was able to meet the NASA goals for fuel burn. Total energy utilization was not decreased but reduced energy cost can be achieved for some scenarios. The team was not able to identify a technology development path to meet NASA's noise goals
Document ID
Acquisition Source
Langley Research Center
Document Type
Contractor Report (CR)
Bradley, Marty K.
(Boeing Research and Technology Huntington Beach, CA, United States)
Droney, Christopher K.
(Boeing Research and Technology Huntington Beach, CA, United States)
Date Acquired
September 3, 2015
Publication Date
April 1, 2015
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
Funding Number(s)
WBS: WBS 081876.01.07.02
Distribution Limits
Public Use Permitted.
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