{"copyright":{"thirdPartyPermissionsProduced":false,"disclosedToPublic":false,"containsIndication":false,"publisherPermissionOrRightsToDistribute":false,"belongsToUsGov":false,"determinationType":"PUBLIC_USE_PERMITTED","thirdPartyContentCondition":"NOT_SET","belongsToContractor":false,"disclosedInvention":false,"submissionId":20170004354,"containsThirdPartyMaterial":false,"belongsToPublisher":false,"id":"e20a71d26a3b437d8a3031262e4b8067","belongsToAuthors":false},"subjectCategories":["Aerodynamics"],"exportControl":{"isExportControl":"NO","submissionId":20170004354,"ear":"NO","id":"38db5fa611ea4fe98d0dc5bd6d05a7e0","itar":"NO"},"distributionDate":"2019-07-12T00:00:00.0000000+00:00","otherReportNumbers":["JSC-CN-39271","Report Number: JSC-CN-39271"],"fundingNumbers":[{"number":"WBS 747797.06.14.03.99.10","submissionId":20170004354,"id":"2eaee89d43a544209cc5a3ea1e0ff573","type":"WBS"}],"title":"Sub-Scale Orion Parachute Test Results from the National Full-Scale Aerodynamics Complex 80- By 120-ft Wind Tunnel","stiType":"CONFERENCE_PAPER","distribution":"PUBLIC","submittedDate":"2017-05-03T10:00:18.4870000+00:00","authorAffiliations":[{"sequence":0,"submissionId":20170004354,"meta":{"author":{"name":"Anderson, Brian P."},"organization":{"name":"NASA Johnson Space Center","location":"Houston, TX, United States"}},"id":"749f182096dc48a1aa743ba7528ead5d"},{"sequence":1,"submissionId":20170004354,"meta":{"author":{"name":"Greathouse, James S."},"organization":{"name":"NASA Johnson Space Center","location":"Houston, TX, United States"}},"id":"85cc98391ef24334b988580e25ad0d3f"},{"sequence":2,"submissionId":20170004354,"meta":{"author":{"name":"Powell, Jessica M."},"organization":{"name":"NASA Johnson Space Center","location":"Houston, TX, United States"}},"id":"5f16073c98e74f82914596ead9972586"},{"sequence":3,"submissionId":20170004354,"meta":{"author":{"name":"Ross, James C."},"organization":{"name":"NASA Ames Research Center","location":"Moffett Field, CA, United States"}},"id":"821dfb23feed40fa8ea166fc1ca06eb0"},{"sequence":4,"submissionId":20170004354,"meta":{"author":{"name":"Schairer, Edward T."},"organization":{"name":"NASA Ames Research Center","location":"Moffett Field, CA, United States"}},"id":"511a9ce1db0b4fbd957c1b418b5d4d33"},{"sequence":5,"submissionId":20170004354,"meta":{"author":{"name":"Kushner, Laura"},"organization":{"name":"NASA Ames Research Center","location":"Moffett Field, CA, United States"}},"id":"3fe42e6b258c43bd9827cba1297b0d83"},{"sequence":6,"submissionId":20170004354,"meta":{"author":{"name":"Porter, Barry J."},"organization":{"name":"NASA Ames Research Center","location":"Moffett Field, CA, United States"}},"id":"6fd5e4d21e1a4831978614e18b436c3c"},{"sequence":7,"submissionId":20170004354,"meta":{"author":{"name":"Goulding, Patrick W., II"},"organization":{"name":"Aerospace Solutions, LLC","location":"Moffett Field, CA, United States"}},"id":"c38f0432e8634cc0953ec42dba7c2aa4"},{"sequence":8,"submissionId":20170004354,"meta":{"author":{"name":"Zwicker, Matthew L. "},"organization":{"name":"Airborne Systems North America","location":"Santa Ana, CA, United States"}},"id":"05837cef6dc44657b9fd00643597ad91"},{"sequence":9,"submissionId":20170004354,"meta":{"author":{"name":"Mollmann, Catherine"},"organization":{"name":"Jacobs Technology, Inc.","location":"Houston, TX, United States"}},"id":"004229bbb574481e979d725cb740cfec"}],"stiTypeDetails":"Conference Paper","technicalReviewType":"TECHNICAL_REVIEW_TYPE_NONE","modified":"2025-08-31T18:39:21.7150190+00:00","id":20170004354,"legacyMeta":{"__type":"LegacyMetaIndex, StrivesApi.ServiceModel","accessionNumber":""},"created":"2017-05-03T10:00:18.4870000+00:00","center":{"code":"JSC","name":"Johnson Space Center","id":"dd46994b91a94cb2a2722617cbbadc55"},"onlyAbstract":false,"sensitiveInformation":2,"abstract":"A two-week test campaign was conducted in the National Full-Scale Aerodynamics Complex 80 x 120-ft Wind Tunnel in support of Orion parachute pendulum mitigation activities. The test gathered static aerodynamic data using an instrumented, 3-tether system attached to the parachute vent in combination with an instrumented parachute riser. Dynamic data was also gathered by releasing the tether system and measuring canopy performance using photogrammetry. Several canopy configurations were tested and compared against the current Orion parachute design to understand changes in drag performance and aerodynamic stability. These configurations included canopies with varying levels and locations of geometric porosity as well as sails with increased levels of fullness. In total, 37 runs were completed for a total of 392 data points. Immediately after the end of the testing campaign a down-select decision was made based on preliminary data to support follow-on sub-scale air drop testing. 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