Powered-lift aircraft technology [PDF]
Powered lift aircraft have the ability to vary the magnitude and direction of the force produced by the propulsion system so as to control the overall lift and streamwise force components of the aircraft, with the objective of enabling the aircraft to ...
Deckert, W. H., Franklin, J. A.
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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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Erosion Testing of Coatings for V-22 Aircraft Applications
International Journal of Rotating Machinery, 2003 High-velocity (183 m/sec) sand erosion tests in a wind tunnel were conducted to evaluate developmental coatings from three separate companies under funding by the Navy's phase I small business innovative research program.
G. Y. Richardson, S. C. Lei, W. Tabakoff
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Application of a cost/performance measurement system on a research aircraft project [PDF]
The fundamentals of the cost/performance management system used in the procurement of two tilt rotor aircraft for a joint NASA/Army research project are discussed. The contractor's reporting system and the GPO's analyses are examined.
Diehl, J. J.
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Code to Code Comparison of Aircraft-Mode Tilt-Rotor Aerodynamics
, 2012 A global comparison of several blind-test numerical predictions of the aerodynamic field around the Erica model in aircraft mode, carried out by some Partners of the NICETRIP consortium, is presented. The calculations are carried out with different codes, different turbulence models, different wind tunnel setups and different grids, with the objective ...
VIGEVANO, LUIGI +5 more
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Conceptual design studies of 1985 commercial VTOL transports that utilized rotors, Volume 2 [PDF]
Results of conceptual design studies of tilt rotor and tandem helicopter aircraft for a 200 nautical mile commercial short haul transport mission are presented.
Alexander, H. R. +2 more
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Identification and verification of frequency-domain models for XV-15 tilt-rotor aircraft dynamics [PDF]
Frequency-domain methods are used to extract the open-loop dynamics of the XV-15 tilt-rotor aircraft from flight test data for the cruise condition (V = 170 knots).
Dugan, D. C. +2 more
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A mathematical simulation model of a 1985-era tilt-rotor passenger aircraft [PDF]
A mathematical model for use in real-time piloted simulation of a 1985-era tilt rotor passenger aircraft is presented. The model comprises the basic six degrees-of-freedom equations of motion, and a large angle of attack representation of the airframe ...
Mcveigh, M. A., Widdison, C. A.
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Segmented Analysis for the Performance Optimization of a Tilt-Rotor RPAS: ProVANT-EMERGENTIa Project
AerospaceThis paper aims to analyze the performance of a tilt-rotor fixed-wing RPAS (Remotely Piloted Aircraft System) using a segmented approach, focusing on a nominal mission for SAR (Search and Rescue) applications.
Álvaro Martínez-Blanco +2 more
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Research on Whirl‑Flutter Characteristics of Distributed Propulsive Rotorcraft
Nanjing Hangkong Hangtian Daxue XuebaoAiming at the problem of whirl-flutter dynamics of distributed propulsion rotorcraft in high-speed forward flight state， this paper proposes a highly versatile， fast and efficient distributed multi-rotor/tilt-wing coupled aeroelastic dynamics analysis ...
CHENG Yi +3 more
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