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The STOL Performance of a Two-Engine, USB Powered-Lift Aircraft with Cross-Shafted Fans
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English
Abstract
The 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.
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Citation
Stevens, V., Wilson, S., and Zola, C., "The STOL Performance of a Two-Engine, USB Powered-Lift Aircraft with Cross-Shafted Fans," SAE Technical Paper 851839, 1985, https://doi.org/10.4271/851839.Also In
References
- Stevens, V. C. Riddle, D. W. Martin, J. L. R, C. “Powered-Lift STOL Aircraft Shipboard Operations: A Comparison of Simulation, Land-Based, and Sea Trial Results for the QSRA,” 1981
- Riddle, D. W. Innis, R. C. Martin, J. L. Cochrane, J. A. “Powered-Lift Takeoff Performance Characteristics Determined from Flight Test of the Quiet Short-Haul Research Aircraft (QSRA),” 1981