Army/NASA small turboshaft engine digital controls research program [PDF]
The emphasis of a program to conduct digital controls research for small turboshaft engines is on engine test evaluation of advanced control logic using a flexible microprocessor based digital control system designed specifically for research on advanced
Baez, A. N., Sellers, J. F.
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V/STOL aircraft configurations and opportunities in the Pacific Basin [PDF]
Advanced aircraft configurations offer new transportation options for the Pacific Basin. Described is a range of vehicles from low-disk to high-disk loading aircraft, including high-speed rotorcraft, subsonic vertical and short takeoff and landing (V ...
Albers, James A., Zuk, John
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Helicopter Inside Cabin Acoustic Evaluation: A Case Study-IAR PUMA 330. [PDF]
Int J Environ Res Public Health, 2021 Deaconu M +3 more
europepmc +1 more source
Observations from Exploration of VTOL Urban Air Mobility Designs [PDF]
NASA is exploring rotorcraft designs for VTOL air taxi operations, also known as urban air mobility (UAM) or on-demand mobility (ODM) applications. Several concept vehicles have been developed, intended to focus and guide NASA research activities in ...
Johnson, Wayne, Silva, Christopher
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Conceptual design and optimization of a sustainable and environmentally friendly archetypal helicopter within the selection criteria and limitations. [PDF]
Heliyon, 2023 Gunaltili E +6 more
europepmc +1 more source
A simplified dynamic model of the T700 turboshaft engine [PDF]
A simplified open-loop dynamic model of the T700 turboshaft engine, valid within the normal operating range of the engine, is developed. This model is obtained by linking linear state space models obtained at different engine operating points.
Duyar, Ahmet +2 more
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Preliminary study of advanced turboprop and turboshaft engines for light aircraft [PDF]
The effects of engine configuration, advanced component technology, compressor pressure ratio and turbine rotor-inlet temperature on such figures of merit as vehicle gross weight, mission fuel, aircraft acquisition cost, operating, cost and life cycle ...
Eisenberg, J. D. +2 more
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Helicopter turboshaft engine ground performance with alternative fuels
, 2020 In recent years, extensive studies on alternative fuels have been conducted to find environmentally friendly, economically feasible fuels due to finite petroleum sources, environmental and economical reasons. In this thesis, effects of alternative fuels on engine performance and exhaust emission are studied experimentally.
openaire +1 more source
NDARC-NASA Design and Analysis of Rotorcraft Theoretical Basis and Architecture [PDF]
, 2010 The theoretical basis and architecture of the conceptual design tool NDARC (NASA Design and Analysis of Rotorcraft) are described. The principal tasks of NDARC are to design (or size) a rotorcraft to satisfy specified design conditions and missions, and ...
Johnson, Wayne
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Civil applications of high-speed rotorcraft and powered-lift aircraft configurations [PDF]
Advanced subsonic vertical and short takeoff and landing (V/STOL) aircraft configurations offer new transportation options for civil applications.
Albers, James A., Zuk, John
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