Results 41 to 50 of about 2,502 (163)

Aerodynamic performance investigation of advanced mechanical suppressor and ejector nozzle concepts for jet noise reduction [PDF]

open access: yes
Advanced Supersonic Transport jet noise may be reduced to Federal Air Regulation limits if recommended refinements to a recently developed ejector shroud exhaust system are successfully carried out.
Bediako, E. D., Wagenknecht, C. D.
core   +1 more source

Thrust performance of a variable-geometry, divergent exhaust nozzle on a turbojet engine at altitude [PDF]

open access: yes
A variable geometry, low aspect ratio, nonaxisymmetric, two dimensional, convergent-divergent exhaust nozzle was tested at simulated altitude on a turbojet engine to obtain baseline axial, dry thrust performance over wide ranges of operating nozzle ...
Collom, R. R., Straight, D. M.
core   +1 more source

QCSEE task 2: Engine and installation preliminary design [PDF]

open access: yes
High-bypass turbofan engines with features required for commercial short haul powered lift transports were designed. Two engines were configured for each of the externally blown flap installations, under-the-wing and over-the-wing. Estimates of installed
Chamay, A. J., Lee, R., Neitzel, R. E.
core   +1 more source

Acoustic tests of duct-burning turbofan jet noise simulation: Comprehensive data report. Volume 2: Model design and aerodynamic test results [PDF]

open access: yes
The selection procedure is described which was used to arrive at the configurations tested, and the performance characteristics of the test nozzles are ...
Brausch, J. F.   +5 more
core   +1 more source

Digital integrated control of a Mach 2.5 mixed-compression supersonic inlet and an augmented mixed-flow turbofan engine [PDF]

open access: yes
A digitally implemented integrated inlet-engine control system was designed and tested on a mixed-compression, axisymmetric, Mach 2.5, supersonic inlet with 45 percent internal supersonic area contraction and a TF30-P-3 augmented turbofan engine.
Arpasi, D. J.   +2 more
core   +1 more source

Bibliography on aerodynamics of airframe/engine integration of high-speed turbine-powered aircraft, volume 1 [PDF]

open access: yes
This bibliography was developed as a first step in the preparation of a monograph on the subject of the aerodynamics of airframe/engine integration of high speed turbine powered aircraft.
Nichols, M. R.
core   +1 more source

Hypersonic propulsion research [PDF]

open access: yes
The development of technology for the modular airframe integrated scramjet has been the focus of hypersonic propulsion research for several years. An part of this research, a variety of inlet concepts have been explored and characterized. The emphasis of
Northam, G. Burton
core   +4 more sources

Tripropellant engine study [PDF]

open access: yes
The potential for converting the space shuttle main engine (SSME) to a dual-fuel, dual-mode engine using LOX/hydrocarbon propellants in mode 1 and LOX/H2 in mode 2 was examined.
Kirby, F. M., Wheeler, D. B.
core   +1 more source

Description and test results of a digital supersonic propulsion system integrated control [PDF]

open access: yes
A digitally implemented integrated inlet/engine control system was developed and tested on a mixed compression, Mach 2.5, supersonic inlet and augmented turbofan engine.
Arpasi, D. J.   +2 more
core   +1 more source

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