{"as_of":"2026-11-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":6,"name":"Waco 9","note":"","unit":"registered","url":"https://eflight.com/models/waco/9"},{"count":657,"name":"Waco","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/waco"},{"count":null,"name":"Built of steel tube, wood and fabric","note":"as the model family is built; the register does not record it per aircraft","unit":"","url":"https://eflight.com/materials/steel-wood-fabric"}],"relation":"is a"},{"group":"Engine","items":[{"count":59,"name":"Wright CURTISS OX5","note":"90 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/wright-curtiss-ox5"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"Historical Society of Western Pennsylvania","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=Historical Society of Western Pennsylvania"}],"relation":"owned by"},{"group":"Place","items":[{"count":145,"name":"Pittsburgh, PA","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Allegheny County","note":"AGC","unit":"","url":"https://eflight.com/airports/AGC"},{"count":null,"name":"Pittsburgh International","note":"PIT","unit":"","url":"https://eflight.com/airports/PIT"},{"count":6195,"name":"Pennsylvania","note":"","unit":"aircraft registered","url":"https://eflight.com/states/PA"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N2574#records-check"}],"relation":"involved in"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Waco 9","note":"","unit":"","url":"https://eflight.com/models/waco/9#accidents"},{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"compared in"},{"group":"Live","items":[{"count":null,"name":"Where N2574 is now","note":"","unit":"","url":"https://eflight.com/live?q=N2574"}],"relation":"seen at"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":{"inherited_from_model":true,"material":"steel-wood-fabric","name":"steel tube, wood and fabric","note":"A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering."},"id":"N2574","maker":"Waco","model":"9","name":"Waco 9 N2574","state":"PA","type":"aircraft","url":"https://eflight.com/aircraft/N2574","year_built":1926},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}