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001 ocm26124010;

003 OCoLC;

005 20090210090817.0;

007 he bmb024bbca;

008 920702s1989 vaua bb f000 0 eng d;

037 a| N 89-27465b| NASA;

049 a| ERE$;

074 a| 0830-D (MF);

074 a| 0830-D (online);

086 0 a| NAS 1.15:101624;

245 00 a| Reduction of blade-vortex interaction noise using higher harmonic pitch control /c| Thomas F. Brooks ... [et al.].;

260 a| Hampton, Va. :b| National Aeronautics and Space Administration, Langley Research Center ;a| US Army Aviation Systems Command, Aviation R & T Activity,c| [1989];

300 a| 17 p. :b| ill.;

336 a| textb| txt2| rdacontent;

337 a| microformb| h2| rdamedia;

338 a| microficheb| he2| rdacarrier;

490 1 a| NASA technical memorandum ;v| 101624;

490 1 a| AVSCOM technical memorandum ;v| 89-B-005;

500 a| Cover title.;

500 a| "July 1989.";

500 a| GPO Cataloging Record Distribution Program (CRDP).;

504 a| Includes bibliographical references (p. 10).;

530 a| Also available via Internet from the NTRS web site. Address as of 2/09/09: http://ntrs.nasa.gov/archive/nasa/casi/ntrs.nasa.gov/ ; current access is available via PURL.;

650 0 a| Rotorsx| Noise.=| ^A332646;

650 7 a| Acoustics.2| nasat;

650 7 a| Blade-vortex interaction.2| nasat;

650 7 a| Control systems design.2| nasat;

650 7 a| Noise reduction.2| nasat;

650 7 a| Pitch (Inclination)2| nasat;

650 7 a| Propeller noise.2| nasat;

700 1 a| Brooks, Thomas F.=| ^A797015;

710 2 a| Langley Research Center.=| ^A192893;

710 1 a| United States.b| Army Aviation Research and Technology Activity.=| ^A435693;

776 0 t| Reduction of blade-vortex interaction noise using higher harmonic pitch control.h| 17 p.w| (OCoLC)302340104;

830 0 a| NASA technical memorandumv| 101624.=| ^A467613;

830 0 a| AVSCOM technical memorandum ;v| 89-B-005.=| ^A437489;

856 41 u| https://purl.fdlp.gov/GPO/LPS108702;

949 a| NAS 1.15:101624w| sudoch| joyner32;

596 a| 1;

998 a| 1459891;

999 a| NAS 1.15:101624w| SUDOCc| 1i| MQ2834058l| JDOMIm| JOYNERr| Ys| Yt| JDOFMIu| 3/18/2009x| MICROFORMz| JFEDDOCSo| .STAFF. 0;

Reduction of blade-vortex interaction noise using higher harmonic pitch control / Thomas F. Brooks ... [et al.].

Other author	Brooks, Thomas F.
Other author	Langley Research Center.
Other author	United States. Army Aviation Research and Technology Activity.
Format	Microform
Publication Info	Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; US Army Aviation Systems Command, Aviation R & T Activity, [1989]
Description	17 p. : ill.
Supplemental Content	https://purl.fdlp.gov/GPO/LPS108702
Subjects	Rotors--Noise.

Series	NASA technical memorandum ; 101624 AVSCOM technical memorandum ; 89-B-005 NASA technical memorandum 101624. ^A467613 AVSCOM technical memorandum ; 89-B-005. ^A437489
General note	Cover title.
General note	"July 1989."
General note	GPO Cataloging Record Distribution Program (CRDP).
Bibliography note	Includes bibliographical references (p. 10).
Other forms	Also available via Internet from the NTRS web site. Address as of 2/09/09: http://ntrs.nasa.gov/archive/nasa/casi/ntrs.nasa.gov/ ; current access is available via PURL.
Reproduction note	Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1989. 1 microfiche : negative.
Issued in other form	Reduction of blade-vortex interaction noise using higher harmonic pitch control. 17 p.
GPO item number	0830-D (MF)
GPO item number	0830-D (online)
Govt. docs number	NAS 1.15:101624
Stock number	N 89-27465 NASA

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Library	Location	Call Number	Status	Item Actions
Joyner	Microforms B300	NAS 1.15:101624	✔ Available

Reduction of blade-vortex interaction noise using higher harmonic pitch control / Thomas F. Brooks ... [et al.].

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