Comparison of acoustic performance of five muffler configurations on a small helicopter /

Description of Langley low-frequency noise facility and study of human response to noise frequencies below 50 cps /

Edge, Philip M.
Mayes, William H.
Langley Research Center.

Prepared at Langley Research Center."January 1966"--Cover.Includes bibliographical references (p. 11...

Simulated indoor sonic booms judged relative to noise from subsonic aircraft /

Kryter, Karl D.
Lukas, Jerome S., 1930-
Langley Research Center.
Stanford Research Institute.

January 1972

"Prepared by Stanford Research Institute ... for Langley Research Center."Cover title.Bibliography: ...

Noise characteristics of jet flap type exhaust flows /

Schrecker, G. O.
Maus, J. R.
Langley Research Center.
University of Tennessee (System). Space Institute.

January 1974

"Prepared by the University of Tennessee Space Institute ... for Langley Research Center."Cover titl...

Operational experiences of a commercial helicopter flown in a large metropolitan area /

DiCarlo, Daniel J.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 14).Mode of ...

Prediction of airframe noise /

Hardin, Jay C.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 51-56).Mode ...

The noisiness of low-frequency one-third octave bands of noise /

Lawton, Ben William.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 25).Bibliogr...

An analytical evaluation of airfoil sections for helicopter rotor applications /

Bingham, Gene J.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 12-13).Mode ...

Comparative evaluation of predicted and measured performance of a 68-cubic meter truncated reverberant noise chamber /

Cyphers, H. D. (Harry David)
On, F. J. (Frank Joe), 1931-
Munson, A. N.
Goddard Space Flight Center.

January 1975

Prepared at Goddard Space Flight Center.Cover title.Includes bibliographical references (p. 43).Mode...

Helicopter rotor rotational noise predictions based on measured high-frequency blade loads /

Hosier, Robert N.
Ramakrishnan, Ramani.
Langley Research Center.

January 1974

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 80-82).Mode ...

Numerical study of sound propagation in a jet flow /

Padula, Sharon L.
Liu, Chen-Huei.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 20).Mode of ...

Theory of noise generation from moving bodies with an application to helicopter rotors /

Farassat, F.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 46-47).Mode ...

Consideration of some factors affecting low-frequency fuselage noise transmission for propeller aircraft /

Mixson, John S.
Roussos, Louis A.
Langley Research Center.

January 1986

Prepared at Langley Research Center."April 1986"--Cover.Includes bibliographical references (p. 18)....

Altitude performance of a low-noise-technology fan in a turbofan engine with and without a sound suppressing nacelle /

Biesiadny, Thomas J.
Abdelwahab, Mahmood, joint author.
Grey, Rudolph E., joint author.
United States. National Aeronautics and Space Administration.
Lewis Research Center.

January 1976

Cover title.Includes bibliographical references (p. 17).Mode of access: Internet

Should helicopter noise be measured differently from other aircraft noise? : a review of the psychoacoustic literature /

Molino, John A.
Wyle Laboratories.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
Langley Research Center.

January 1982

"November 1982"--Cover."Wyle Laboratories."Includes bibliographical references.Mode of access: Inter...

Simulation study of intracity helicopter operations under instrument conditions to category I minimums /

Callan, William M.
DiCarlo, Daniel J.
Houck, Jacob A.
Langley Research Center.

January 1974

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 22).Mode of ...

Description of Langley low-frequency noise facility and study of human response to noise frequencies below 50 cps /

Edge, Philip M.
Mayes, William H.
Langley Research Center.

Prepared at Langley Research Center."January 1966"--Cover.Includes bibliographical references (p. 11...

Simulated indoor sonic booms judged relative to noise from subsonic aircraft /

Kryter, Karl D.
Lukas, Jerome S., 1930-
Langley Research Center.
Stanford Research Institute.

January 1972

"Prepared by Stanford Research Institute ... for Langley Research Center."Cover title.Bibliography: ...

Noise characteristics of jet flap type exhaust flows /

Schrecker, G. O.
Maus, J. R.
Langley Research Center.
University of Tennessee (System). Space Institute.

January 1974

"Prepared by the University of Tennessee Space Institute ... for Langley Research Center."Cover titl...

Operational experiences of a commercial helicopter flown in a large metropolitan area /

DiCarlo, Daniel J.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 14).Mode of ...

Prediction of airframe noise /

Hardin, Jay C.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 51-56).Mode ...

The noisiness of low-frequency one-third octave bands of noise /

Lawton, Ben William.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 25).Bibliogr...

An analytical evaluation of airfoil sections for helicopter rotor applications /

Bingham, Gene J.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 12-13).Mode ...

Comparative evaluation of predicted and measured performance of a 68-cubic meter truncated reverberant noise chamber /

Cyphers, H. D. (Harry David)
On, F. J. (Frank Joe), 1931-
Munson, A. N.
Goddard Space Flight Center.

January 1975

Prepared at Goddard Space Flight Center.Cover title.Includes bibliographical references (p. 43).Mode...

Helicopter rotor rotational noise predictions based on measured high-frequency blade loads /

Hosier, Robert N.
Ramakrishnan, Ramani.
Langley Research Center.

January 1974

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 80-82).Mode ...

Numerical study of sound propagation in a jet flow /

Padula, Sharon L.
Liu, Chen-Huei.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 20).Mode of ...

Theory of noise generation from moving bodies with an application to helicopter rotors /

Farassat, F.
Langley Research Center.

January 1975

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 46-47).Mode ...

Consideration of some factors affecting low-frequency fuselage noise transmission for propeller aircraft /

Mixson, John S.
Roussos, Louis A.
Langley Research Center.

January 1986

Prepared at Langley Research Center."April 1986"--Cover.Includes bibliographical references (p. 18)....

Altitude performance of a low-noise-technology fan in a turbofan engine with and without a sound suppressing nacelle /

Biesiadny, Thomas J.
Abdelwahab, Mahmood, joint author.
Grey, Rudolph E., joint author.
United States. National Aeronautics and Space Administration.
Lewis Research Center.

January 1976

Cover title.Includes bibliographical references (p. 17).Mode of access: Internet

Should helicopter noise be measured differently from other aircraft noise? : a review of the psychoacoustic literature /

Molino, John A.
Wyle Laboratories.
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch.
Langley Research Center.

January 1982

"November 1982"--Cover."Wyle Laboratories."Includes bibliographical references.Mode of access: Inter...

Simulation study of intracity helicopter operations under instrument conditions to category I minimums /

Callan, William M.
DiCarlo, Daniel J.
Houck, Jacob A.
Langley Research Center.

January 1974

Prepared at Langley Research Center.Cover title.Includes bibliographical references (p. 22).Mode of ...

Description of Langley low-frequency noise facility and study of human response to noise frequencies below 50 cps /

Edge, Philip M.
Mayes, William H.
Langley Research Center.

Prepared at Langley Research Center."January 1966"--Cover.Includes bibliographical references (p. 11...

Simulated indoor sonic booms judged relative to noise from subsonic aircraft /

Kryter, Karl D.
Lukas, Jerome S., 1930-
Langley Research Center.
Stanford Research Institute.

January 1972

"Prepared by Stanford Research Institute ... for Langley Research Center."Cover title.Bibliography: ...

Noise characteristics of jet flap type exhaust flows /

Schrecker, G. O.
Maus, J. R.
Langley Research Center.
University of Tennessee (System). Space Institute.

January 1974

"Prepared by the University of Tennessee Space Institute ... for Langley Research Center."Cover titl...

Comparison of acoustic performance of five muffler configurations on a small helicopter /

Abstract

Extracted data

Comparison of acoustic performance of five muffler configurations on a small helicopter /

Abstract

Extracted data

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