{"canonical":"https://abierto.us/opportunities/darpaps26136","key":"DARPAPS26136","url":"https://abierto.us/opportunities/darpaps26136","title":"Fox Tail","solicitation_number":"DARPA-PS-26-136","notice_type":"o","open":true,"removed":false,"removed_at":null,"response_deadline":"2027-01-29","first_posted":"2026-09-24","last_posted":"2026-09-24","department":"DEPT OF DEFENSE","subagency":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541715","psc":"AC12","set_aside":null,"place_state":null,"place_scope":"nationwide","site":null,"place_state_source":null,"place_evidence":"Research and development (PSC AC12)","place_county":null,"place_county_name":null,"place_city":null,"place_city_name":null,"winner":null,"award_amount":null,"publications":[{"notice_id":"544aaeb3e0a148d1be7c36ca60d9e844","title":"Fox Tail","solicitation_number":"DARPA-PS-26-136","notice_type":"o","base_type":"o","posted":"2026-09-24","posted_at":"2026-09-24T20:37:55.375Z","due_at":null,"due_date":"2027-01-29","cancelled":false,"archived":false,"archive_date":"2027-02-28","removed_at":null,"award_number":null,"awardee_name":null,"amount":null,"link_sam":"https://sam.gov/workspace/contract/opp/544aaeb3e0a148d1be7c36ca60d9e844/view","enriched":true,"history":[{"index":1,"title":"Fox Tail","action":"publish","latest":true,"deleted":false,"archived":false,"cancelled":false,"posted_at":"2026-09-24T20:37:55.375Z","notice_type":{"code":"o","label":"Solicitation"},"request_type":"submit","opportunity_id":"544aaeb3e0a148d1be7c36ca60d9e844","solicitation_number":"DARPA-PS-26-136"}]}],"latest_notice_id":"544aaeb3e0a148d1be7c36ca60d9e844","first_type":"o","notices":[{"dates":{"posted":"2026-09-24","posted_at":"2026-09-24T20:37:55.375Z","created_at":"2026-09-24T20:37:25.514Z","modified_at":"2026-09-24T20:37:55.375Z","response_deadline":{"raw":"2027-01-29T16:00:00","date":"2027-01-29","time":"16:00:00"}},"links":{"sam":"https://sam.gov/workspace/contract/opp/544aaeb3e0a148d1be7c36ca60d9e844/view"},"naics":{"codes":["541715"],"primary":"541715"},"title":"Fox Tail","agency":{"office":{"code":"HR0011","name":"DEF ADVANCED RESEARCH PROJECTS AGCY"},"subtier":{"code":"97AE","name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)"},"department":{"code":"097","name":"DEPT OF DEFENSE"},"office_address":{"zip":"222032114","city":"ARLINGTON","state":"VA","country":"USA"},"organization_type":"OFFICE"},"status":{"active":true,"latest":true,"deleted":false,"archived":false,"cancelled":false,"publication":"published","archive_date":"2027-02-28","archive_type":"auto_custom"},"history":[{"index":1,"title":"Fox Tail","action":"publish","latest":true,"deleted":false,"archived":false,"cancelled":false,"posted_at":"2026-09-24T20:37:55.375Z","notice_type":{"code":"o","label":"Solicitation"},"request_type":"submit","opportunity_id":"544aaeb3e0a148d1be7c36ca60d9e844","solicitation_number":"DARPA-PS-26-136"}],"contacts":[{"name":"BAA Coordinator","role":"primary","email":"FoxTail@darpa.mil"}],"base_type":{"code":"o","label":"Solicitation"},"notice_id":"544aaeb3e0a148d1be7c36ca60d9e844","lineage_id":"544aaeb3e0a148d1be7c36ca60d9e844","provenance":{"detail":{"endpoints":["opportunity","resources","history"],"fetched_at":"2026-09-26T00:17:54.234082366Z"},"extract":{"url":"https://s3.amazonaws.com/falextracts/Contract%20Opportunities/datagov/ContractOpportunitiesFullCSV.csv","etag":"\"61d48ea1a565394e13a52756fdaf0a96-26\"","fetched_at":"2026-10-03T03:46:48.862698055Z","row_sha256":"f55d98b75fc8cec3479e74f27b51072f7809157eb6ab7e1d74d96d6b49b17694","last_modified":"2026-10-03T03:30:32Z"},"updated_at":"2026-10-03T03:46:48.862698055Z","first_seen_at":"2026-09-25T04:24:42.881399783Z"},"description":{"html":"The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the general area of extreme-scale hydrodynamics, including, but not limited to, high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. Proposed research should investigate innovative theoretical and computational modeling approaches relying on first principles-based closures of the governing laws of fluid motion under such conditions.","text":"The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the general area of extreme-scale hydrodynamics, including, but not limited to, high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. Proposed research should investigate innovative theoretical and computational modeling approaches relying on first principles-based closures of the governing laws of fluid motion under such conditions.","origin":"detail"},"notice_type":{"code":"o","label":"Solicitation"},"schema_version":1,"solicitation_number":"DARPA-PS-26-136","product_service_code":"AC12"}],"due_at":null,"due_date":"2027-01-29","closes_at":"2027-01-30T00:00:00Z","awardable":true,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"state_source":null,"state_evidence":"Research and development (PSC AC12)","site_key":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"updated_at":"2026-09-25T04:26:02.640284Z","principal_notice_id":"544aaeb3e0a148d1be7c36ca60d9e844","description":{"text":"The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the general area of extreme-scale hydrodynamics, including, but not limited to, high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. Proposed research should investigate innovative theoretical and computational modeling approaches relying on first principles-based closures of the governing laws of fluid motion under such conditions.","html":"The Defense Advanced Research Projects Agency (DARPA) is soliciting innovative proposals in the general area of extreme-scale hydrodynamics, including, but not limited to, high amplitude wave propagation, very high Reynolds number flows, and abrupt phase changes. Proposed research should investigate innovative theoretical and computational modeling approaches relying on first principles-based closures of the governing laws of fluid motion under such conditions.","origin":"detail"},"contacts":[{"name":"BAA Coordinator","role":"primary","email":"FoxTail@darpa.mil"}],"place_of_performance":null,"office_address":{"zip":"222032114","city":"ARLINGTON","state":"VA","country":"USA"},"naics_codes":["541715"],"award":null,"attachments":[{"resource_id":"74a5304a99564c7c8bf36f93b5ae2665","name":"Attachment_E_Proposal_Volume_II__Cost_Proposal_.docx","kind":"file","mime_type":".docx","size_bytes":51491,"posted_at":"2026-09-24T20:37:55.375Z","export_controlled":false,"sha256":null,"url":"https://sam.gov/api/prod/opps/v3/opportunities/resources/files/74a5304a99564c7c8bf36f93b5ae2665/download","mirrored":false}],"awards":[],"related":[{"key":"DARPAPA250706","latest_notice_id":"a01af4b233824257bcb2807f114c4cd6","title":"Selective Harnessing of Intrinsic Neuroplasticity Engineering (SHINE)","solicitation_number":"DARPA-PA-25-07-06","notice_type":"o","first_type":"o","first_posted":"2026-08-28","last_posted":"2026-09-28","notices":3,"due_at":null,"due_date":"2026-10-09","closes_at":"2026-10-10T00:00:00Z","awardable":true,"open":true,"removed":false,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541715","psc":"AC11","set_aside":null,"state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"place_scope":"nationwide","state_source":null,"state_evidence":"Research and development (PSC AC11)","site":null,"site_key":null,"winner":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"removed_at":null,"updated_at":"2026-09-29T03:58:53.462888Z"},{"key":"DARPAPA250704","latest_notice_id":"0ea1a4cebcb24732b92a184df0a4bee2","title":"Resilient","solicitation_number":"DARPA-PA-25-07-04","notice_type":"o","first_type":"o","first_posted":"2026-08-20","last_posted":"2026-09-28","notices":4,"due_at":null,"due_date":"2026-10-19","closes_at":"2026-10-20T00:00:00Z","awardable":true,"open":true,"removed":false,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541715","psc":"AC12","set_aside":null,"state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"place_scope":"nationwide","state_source":null,"state_evidence":"Research and development (PSC AC12)","site":null,"site_key":null,"winner":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"removed_at":null,"updated_at":"2026-09-29T03:58:53.462888Z"},{"key":"DARPAPS26129","latest_notice_id":"8d7bb66b691a4def9e7efe4d4345bb7a","title":"Protein ENGineering (PENG)","solicitation_number":"DARPA-PS-26-129","notice_type":"o","first_type":"o","first_posted":"2026-08-07","last_posted":"2026-08-21","notices":2,"due_at":null,"due_date":"2026-10-19","closes_at":"2026-10-20T00:00:00Z","awardable":true,"open":true,"removed":false,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541714","psc":"AC12","set_aside":null,"state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"place_scope":"nationwide","state_source":null,"state_evidence":"Research and development (PSC AC12)","site":null,"site_key":null,"winner":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"removed_at":null,"updated_at":"2026-09-24T03:25:58.922164Z"},{"key":"DARPAPA2507","latest_notice_id":"ab7b4ecf5cbd4225ae1ebe16e22a8330","title":"Disruptioneering Program Announcement","solicitation_number":"DARPA-PA-25-07","notice_type":"o","first_type":"o","first_posted":"2025-09-30","last_posted":"2026-09-25","notices":4,"due_at":null,"due_date":"2026-10-30","closes_at":"2026-10-31T00:00:00Z","awardable":true,"open":true,"removed":false,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541715","psc":"AC11","set_aside":null,"state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"place_scope":"nationwide","state_source":null,"state_evidence":"Research and development (PSC AC11)","site":null,"site_key":null,"winner":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"removed_at":null,"updated_at":"2026-09-26T03:46:31.808669Z"},{"key":"DARPAPS26137","latest_notice_id":"182eab6ca77d465f931c6dc118b939ca","title":"Firefox","solicitation_number":"DARPA-PS-26-137","notice_type":"o","first_type":"o","first_posted":"2026-09-16","last_posted":"2026-09-16","notices":1,"due_at":null,"due_date":"2026-11-09","closes_at":"2026-11-10T00:00:00Z","awardable":true,"open":true,"removed":false,"dept_key":"d-097","dept_name":"DEPT OF DEFENSE","sub_key":"s-97AE","sub_name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office_key":"o-HR0011","office_name":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541714","psc":"AC12","set_aside":null,"state":null,"county":null,"county_name":null,"city":null,"city_name":null,"country":null,"place_scope":"nationwide","state_source":null,"state_evidence":"Research and development (PSC AC12)","site":null,"site_key":null,"winner":null,"winner_key":null,"amount":null,"linked_awards":0,"cancelled":false,"archived":false,"removed_at":null,"updated_at":"2026-09-24T03:25:58.922164Z"}]}