Results 71 to 80 of about 1,393 (153)

Rotor systems research aircraft predesign study. Volume 4: Preliminary draft detail specification [PDF]

open access: yes
The RSRA requirements are presented in a detail specification format. Coverage of the requirements includes the following headings: (1) aircraft characteristics, (2) general features of design and construction, (3) aerodynamics, (4) structural design ...
Linden, A. W., Miller, A. N.
core   +1 more source

Baseline Assumptions and Future Research Areas for Urban Air Mobility Vehicles [PDF]

open access: yes
NASA is developing Urban Air Mobility (UAM) concepts to (1) create first-generation reference vehicles that can be used for technology, system, and market studies, and (2) hypothesize second-generation UAM aircraft to determine high-payoff technology ...
Antcliff, Kevin   +3 more
core   +1 more source

Helicopter turboshaft engine ground performance with alternative fuels

open access: yes, 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

An update of engine system research at the Army Propulsion Directorate [PDF]

open access: yes
The Small Turboshaft Engine Research (STER) program provides a vehicle for evaluating the application of emerging technologies to Army turboshaft engine systems and to investigate related phenomena.
Bobula, George A.
core   +1 more source

Threats from and Countermeasures for Unmanned Aerial and Underwater Vehicles. [PDF]

open access: yesSensors (Basel), 2022
Khawaja W   +5 more
europepmc   +1 more source

Preliminary study of advanced turboprop and turboshaft engines for light aircraft [PDF]

open access: yes
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
core   +1 more source

Application of Nanofluids in Gas Turbine and Intercoolers-A Comprehensive Review. [PDF]

open access: yesNanomaterials (Basel), 2022
Almertejy A   +3 more
europepmc   +1 more source

Advanced General Aviation Turbine Engine (GATE) study [PDF]

open access: yes
The small engine technology requirements suitable for general aviation service in the 1987 to 1988 time frame were defined. The market analysis showed potential United States engines sales of 31,500 per year providing that the turbine engine sales price ...
Benstein, E. H., Smith, R.
core   +1 more source

General Aviation Turbine Engine (GATE) study [PDF]

open access: yes
The feasibility of turbine engines for the smaller general aviation aircraft was investigated and a technology program for developing the necessary technology was identified.
Baerst, C. F., Furst, D. G.
core   +1 more source

Home - About - Disclaimer - Privacy