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The STOL performance of a two-engine, USB powered-lift aircraft with cross-shafted fansThe short takeoff and landing capabilities that characterize the performance of powered-lift aircraft are dependent on engine thrust and are, therefore, severely affected by loss of an engine. This paper shows that the effects of engine loss on the short takeoff and landing performance of powered-lift aircraft can be effectively mitigated by cross-shafting the engine fans in a twin-engine configuration. Engine-out takeoff and landing performances are compared for three powered-lift aircraft configurations: one with four engines, one with two engines, and one with two engines in which the fans are cross-shafted. The results show that the engine-out takeoff and landing performance of the cross-shafted two-engine configuration is significantly better than that of the two-engine configuration without cross-shafting.
Document ID
19860053598
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stevens, V. C.
(NASA Ames Research Center Moffett Field, CA, United States)
Wilson, S. B., III
(NASA Ames Research Center Moffett Field, CA, United States)
Zola, C. A.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
SAE PAPER 851839
Accession Number
86A38336
Distribution Limits
Public
Copyright
Other

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