Helicopter rotor blade design for minimum vibration /

Coupled rotor/airframe vibration analysis /

Sopher, Robert.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
United Technologies Corporation. Sikorsky Aircraft Division.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
Langley Research Center.

January 1982

"United Technologies Corporation, Sikorsky Aircraft Division"--Tech. rep. p."November 1982"--Cover.I...

Performance testing of a main rotor system for a utility helicopter at 1/4 scale /

Berry, John D.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

"April 1982"--Cover."Structures Laboratory, AVRADCOM Research and Technology Laboratories, Langley R...

Unsteady subsonic and transonic potential flow over helicopter rotor blades /

Isom, Morris P.
Ames Research Center.
Polytechnic Institute of New York.

January 1974

"Prepared by Polytechnic Institute of New York ... for Ames Research Center."Cover title.Includes bi...

Hovering characteristics of a rotor having an airfoil section designed for a utility type of helicopter y James P. Shivers and William J. Monahan.

Shivers, James P.
Monahan, William J.
United States. National Aeronautics and Space Administration.

Cover title."December 1962."Includes bibliographical references.Mode of access: Internet

Refinement and evaluation of helicopter real-time self-adaptive active vibration controller algorithms /

Davis, Mark W.
United Technologies Research Center.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1984

Subject category 02."August 1984"--Cover.Distributed to depository libraries in microfiche."United T...

Efficiency testing of a helicopter transmission planetary reduction stage /

Handschuh, Robert F.
Rohn, Douglas A.
United States. Army Avition Research and Technology Activity. Propulsion Directorate.
Lewis Research Center.

Prepared at Lewis Research Center and Propulsion Directorate, U.S. Army Aviation Research and Techno...

Comparison of three methods for calculation of helicopter rotor blade loading and stresses due to stall /

Johnson, Wayne, 1946-
U.S. Army Air Mobility Research and Development Laboratory.
Ames Research Center.

January 1974

Prepared at Ames Research Center and the U.S. Army Air Mobility R&D Laboratory.Cover title.Includes ...

Preliminary structural design of composite main rotor blades for minimum weight /

Nixon, Mark W.
United States. Army. Aerostructures Directorate.

January 1987

Prepared at the Aerostructures Directorate, USAARTA-AVSCOM."July 1987"--Cover.Includes bibliographic...

Compressible, unsteady lifting-surface theory for a helicopter rotor in forward flight /

Runyan, Harry L.
Tai, H. (Hsiang)
Langley Research Center.

January 1985

Prepared at Langley Research Center."December 1985"--Cover.Includes bibliographical references (p. 1...

Reduction of high-speed impulsive noise by blade planform modification of a model helicopter rotor /

Conner, David A. (David Alan), 1956-
Hoad, Danny R.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
Langley Research Center.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1982

Subject category 71."Structures Laboratory, AVRADCOM Research and Technology Laboratories.""December...

Wind-tunnel test of an articlulated helicopter rotor model with several tip shapes /

Berry, John D.
Mineck, Raymond E.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. Army Aviation Research and Development Command.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1980

Dec. 1980."U.S. Army AVRADCOM"--Cover."Structures Laboratory, AVRADCOM Research and Technology Labor...

Flight measurements of the effects of blade out of track on the vibration levels on a tandem rotor helicopter /

United States. National Aeronautics and Space Administration.
Langley Research Center.

"May 1960."Cover title.Includes bibliographical references (p. 13).Mode of access: Internet

The effect of helicopter main rotor blade phasing and spacing on performance, blade loads, and acoustics /

Gangwani, Santu T.
Systems Research Laboratories. Rasa Division.
United States. National Aeronautics and Space Administration.

January 1976

Issued Sept. 1976.Contract no. NAS1-13705.Bibliography: p. 29.Mode of access: Internet

Aerodynamic characteristics of three helicopter rotor airfoil sections at Reynolds numbers from model scale to full scale at Mach numbers from 0.35 to 0.90 /

Noonan, Kevin W.
Bingham, Gene J.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. Army Aviation Research and Development Command.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1980

Sept. 1980."U.S. Army AVRADCOM"--Cover."Structures Laboratory, AVRADCOM Research and Technology Labo...

Investigation of a bearingless helicopter rotor concept having a composite primary structure /

Bielawa, Richard L.
Novak, Richard C., joint author.
Cheney, Marvin C., joint author.
United Technologies Research Center.
United States. National Aeronautics and Space Administration.

January 1976

Issued Oct. 1976.Contract no. NAS 1-10960.Includes bibliographical references.Mode of access: Intern...

Coupled rotor/airframe vibration analysis /

Sopher, Robert.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
United Technologies Corporation. Sikorsky Aircraft Division.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
Langley Research Center.

January 1982

"United Technologies Corporation, Sikorsky Aircraft Division"--Tech. rep. p."November 1982"--Cover.I...

Performance testing of a main rotor system for a utility helicopter at 1/4 scale /

Berry, John D.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

"April 1982"--Cover."Structures Laboratory, AVRADCOM Research and Technology Laboratories, Langley R...

Unsteady subsonic and transonic potential flow over helicopter rotor blades /

Isom, Morris P.
Ames Research Center.
Polytechnic Institute of New York.

January 1974

"Prepared by Polytechnic Institute of New York ... for Ames Research Center."Cover title.Includes bi...

Hovering characteristics of a rotor having an airfoil section designed for a utility type of helicopter y James P. Shivers and William J. Monahan.

Shivers, James P.
Monahan, William J.
United States. National Aeronautics and Space Administration.

Cover title."December 1962."Includes bibliographical references.Mode of access: Internet

Refinement and evaluation of helicopter real-time self-adaptive active vibration controller algorithms /

Davis, Mark W.
United Technologies Research Center.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1984

Subject category 02."August 1984"--Cover.Distributed to depository libraries in microfiche."United T...

Efficiency testing of a helicopter transmission planetary reduction stage /

Handschuh, Robert F.
Rohn, Douglas A.
United States. Army Avition Research and Technology Activity. Propulsion Directorate.
Lewis Research Center.

Prepared at Lewis Research Center and Propulsion Directorate, U.S. Army Aviation Research and Techno...

Comparison of three methods for calculation of helicopter rotor blade loading and stresses due to stall /

Johnson, Wayne, 1946-
U.S. Army Air Mobility Research and Development Laboratory.
Ames Research Center.

January 1974

Prepared at Ames Research Center and the U.S. Army Air Mobility R&D Laboratory.Cover title.Includes ...

Preliminary structural design of composite main rotor blades for minimum weight /

Nixon, Mark W.
United States. Army. Aerostructures Directorate.

January 1987

Prepared at the Aerostructures Directorate, USAARTA-AVSCOM."July 1987"--Cover.Includes bibliographic...

Compressible, unsteady lifting-surface theory for a helicopter rotor in forward flight /

Runyan, Harry L.
Tai, H. (Hsiang)
Langley Research Center.

January 1985

Prepared at Langley Research Center."December 1985"--Cover.Includes bibliographical references (p. 1...

Reduction of high-speed impulsive noise by blade planform modification of a model helicopter rotor /

Conner, David A. (David Alan), 1956-
Hoad, Danny R.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
Langley Research Center.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1982

Subject category 71."Structures Laboratory, AVRADCOM Research and Technology Laboratories.""December...

Wind-tunnel test of an articlulated helicopter rotor model with several tip shapes /

Berry, John D.
Mineck, Raymond E.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. Army Aviation Research and Development Command.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1980

Dec. 1980."U.S. Army AVRADCOM"--Cover."Structures Laboratory, AVRADCOM Research and Technology Labor...

Flight measurements of the effects of blade out of track on the vibration levels on a tandem rotor helicopter /

United States. National Aeronautics and Space Administration.
Langley Research Center.

"May 1960."Cover title.Includes bibliographical references (p. 13).Mode of access: Internet

The effect of helicopter main rotor blade phasing and spacing on performance, blade loads, and acoustics /

Gangwani, Santu T.
Systems Research Laboratories. Rasa Division.
United States. National Aeronautics and Space Administration.

January 1976

Issued Sept. 1976.Contract no. NAS1-13705.Bibliography: p. 29.Mode of access: Internet

Aerodynamic characteristics of three helicopter rotor airfoil sections at Reynolds numbers from model scale to full scale at Mach numbers from 0.35 to 0.90 /

Noonan, Kevin W.
Bingham, Gene J.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. Army Aviation Research and Development Command.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

January 1980

Sept. 1980."U.S. Army AVRADCOM"--Cover."Structures Laboratory, AVRADCOM Research and Technology Labo...

Investigation of a bearingless helicopter rotor concept having a composite primary structure /

Bielawa, Richard L.
Novak, Richard C., joint author.
Cheney, Marvin C., joint author.
United Technologies Research Center.
United States. National Aeronautics and Space Administration.

January 1976

Issued Oct. 1976.Contract no. NAS 1-10960.Includes bibliographical references.Mode of access: Intern...

Coupled rotor/airframe vibration analysis /

Sopher, Robert.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
United Technologies Corporation. Sikorsky Aircraft Division.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
Langley Research Center.

January 1982

"United Technologies Corporation, Sikorsky Aircraft Division"--Tech. rep. p."November 1982"--Cover.I...

Performance testing of a main rotor system for a utility helicopter at 1/4 scale /

Berry, John D.
Army Research and Technology Laboratories (U.S.). Structures Laboratory.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.

"April 1982"--Cover."Structures Laboratory, AVRADCOM Research and Technology Laboratories, Langley R...

Unsteady subsonic and transonic potential flow over helicopter rotor blades /

Isom, Morris P.
Ames Research Center.
Polytechnic Institute of New York.

January 1974

"Prepared by Polytechnic Institute of New York ... for Ames Research Center."Cover title.Includes bi...

Helicopter rotor blade design for minimum vibration /

Abstract

Extracted data

Helicopter rotor blade design for minimum vibration /

Abstract

Extracted data

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