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  • Improved manufacturing method for processes for super finished spur and helical gears. Final report, by Neil De Bruyne.

    • Text
    • Wood-Ridge, N. J., Curtiss-Wright Corp., 1972.
    • 1972

  • Surface fatigue life of M50NiL and AISI 9310 spur gears and R C bars [microform] / Dennis P. Townsend and Eric N. Bamberger.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Computerized inspection of real surfaces and minimization of their deviations [microform] / F.L. Litvin ... [et al].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Recent manufacturing advances for spiral bevel gears [microform] / Robert F. Handschuh and Robert C. Bill.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Effect of two synthetic lubricants on life of AISI 9310 spur gears [microform] / Dennis P. Townsend and John Shimski.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Microstructural and strength stability of CVD SiC fibers in argon environment [microform] / Ramakrishna T. Bhatt and David R. Hull.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1991]
    • 1991

  • Numerical experiments with flow of elongated granules [microform] / Harold G. Elrod and David E. Brewe.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Frequency effects on the stability of a journal bearing for periodic loading [microform] / D. Vijayaraghavan and D.E. Brewe.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, [1991]
    • 1991

  • Local synthesis and tooth contact analysis of face-milled spiral bevel gears [microform] / F.L. Litvin and Y. Zhang and R.F. Handshuh.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, [1991]
    • 1991

  • Ultrasonic velocity technique for monitoring property changes in fiber-reinforced ceramic matrix composites [microform] / Harold E. Kautz and Ramakrishna T. Bhatt.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, [1991]
    • 1991

  • Structure-to-property relationships in addition cured polymers. IV, Correlations between thermo-oxidative weight losses of norbornenyl cured polyimide resins and their composites [microform] / William B. Alston.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, [1992]
    • 1992

  • The NASA Lewis integrated propulsion and flight control simulator [microform] / Michelle M. Bright and Donald L. Simon.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991

  • Dynamic measurements of gear tooth friction and load [microform] / Brian Rebbechi, Fred B. Oswald, and Dennis P. Townsend.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : National Technical information Service [distributor], [1991]
    • 1991

  • Transmission overhaul estimates for partial and full replacement at repair [microform] / M. Savage and D.G. Lewicki.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991

  • Development and evaluation of an inverse solution technique for studying helicopter maneuverability and agility [microform] / Matthew S. Whalley.

    • Text
    • Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service [distributor], 1991]
    • 1991

  • Full-scale transmission testing to evaluate advanced lubricants [microform] / David G. Lewicki and Harry J. Decker, and John T. Shimski.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Gear tooth stress measurements of two helicopter planetary stages [microform] / Timothy L. Krantz.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command, [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Jet-A reaction mechanism study for combustion application [microform] / Chi-Ming Lee and Krishna Kundu and Waldo Acosta.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service [distributor], 1991]
    • 1991

  • A high-frequency servosystem for fuel control in hypersonic engines [microform] / Donald L. Simon.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991

  • Spur-gear optimization using SPUROPT computer program [microform] / Harold H. Coe.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991

  • Tuning maps for setpoint changes and load disturbance upsets in a three capacity process under multivariable control [microform] / Jonathan S. Litt and Ira C. Smith.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1991]
    • 1991

  • Effect of contact ratio on spur gear dynamic load [microform] / Chuen-Huei Liou ... [et al.].

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center ; St. Louis, Mo. : U.S. Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Effect of operating conditions on gearbox noise [microform] / Fred B. Oswald ... [et. al].

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center : U.S. Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Improvement in surface fatigue life of hardened gears by high-intensity shot peening [microform] / Dennis P. Townsend.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center : U.S. Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Effect of lubricant jet location on spiral bevel gear operating temperatures [microform] / Robert F. Handschuh.

    • Text
    • Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center : U.S. Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Advanced Rotorcraft Transmission (ART) Program summary [microform] / T.L. Krantz and J.G. Kish.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Contingency power for a small turboshaft engine by using water injection into turbine cooling air [microform] / Thomas J. Biesiadny and Gary A. Klann.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service, distributor, 1987]
    • 1992

  • Validation of finite element and boundary element methods for predicting structural vibration and radiated noise [microform] / A.F. Seybert and X.F. Wu and Fred B. Oswald.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service, distributor, 1992]
    • 1992

  • Optimal design of compact spur gear reductions [microform] / M. Savage ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service, distributor, 1992]
    • 1992

  • Experimental testing of prototype face gears for helicopter transmissions [microform] / R. Handschuh and D. Lewicki and R. Bossler.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Modal simulation of gearbox vibration with experimental correlation [microform] / Fred K. Choy ... [et al.].

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Application of face-gear drives in helicopter transmissions [microform] / F.L. Litvin ... [et al.].

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Optimum design of a gearbox for low vibration [microform] / Katsumi Inoue, Dennis P. Townsend, and John J. Coy.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Dynamics of a split torque helicopter transmission [microform] / Majid Rashidi and Timothy Krantz.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command, d, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • A Demonstration of an intelligent control system for a reusable rocket engine [microform] / Jeffrey L. Musgrave ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Aircraft crash survival design guide [microform] / Simula, Inc.

    • Text
    • [St. Louis, Mo.?] : US Army Aviation Systems Command, [1989-
    • 1989-present

  • Minimization of deviations of gear real tooth surfaces determined by coordinate measurements [microform] / F.L. Litvin ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va.? : National Technical Information Service, distributor, 1992]
    • 1992

  • A simplified dynamic model of the T700 turboshaft engine [microform] / Ahmet Duyar and Zhen Gu and Jonathan S. Litt.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 19 ]
    • 1992

  • Analysis and modification of a single-mesh gear fatigue rig for use in diagnostic studies [microform] / James J. Zakrajsek ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • A 4-spot time-of-flight anemometer for small centrifugal compressor velocity measurements [microform] / Mark P. Wernet and Gary J. Skoch.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Comparison of analysis and experiment for gearbox noise [microform] / Fred B. Oswald ... [et al.].

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Direct numerical simulation of instabilities in parallel flow with spherical roughness elements [microform] / R. G. DeAnna.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Experimental validation of boundary element methods for noise prediction [microform] / A.F. Seybert and Fred B. Oswald.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Piloted evaluation of an integrated propulsion and flight control simulator [microform] / Michelle M. Bright and Donald L. Simon.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Split torque transmission load sharing [microform] / T.L. Krantz, M. Rashidi, and J.G. Kish.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Maximum life spiral bevel reduction design [microform] / M. Savage and M.G. Prasanna and H.H. Coe.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical Information Service, 1992]
    • 1992

  • Impletation of an intelligent control system [microform] / D.L. Simon and E. Wong and J.L. Musgrave.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo. : US Army Aviation Systems Command ; Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Minimization of the vibration energy of thin-plate structure [microform] / Katsumi Inoue, Dennis P. Townsend, and John J. Coy.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • Transonic turbine blade cascade testing facility [microform] / Vincent G. Verhoff and William P. Camperchioli and Isaac Lopez.

    • Text
    • [Washington, DC : National Aeronautics and Space Administration ; St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

  • In-phase and out-of-phase axial-torsional fatigue behavior of Haynes 188 at 760⁰C [microform] / Sreeramesh Kalluri and Peter J. Bonacuse.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [St. Louis, Mo.] : US Army Aviation Systems Command ; [Springfield, Va. : For sale by the National Technical information Service, 1992]
    • 1992

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