{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":19,"name":"Waco QCF","note":"","unit":"registered","url":"https://eflight.com/models/waco/qcf"},{"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":170,"name":"Continental R670-series","note":"225 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/continental-r670-series"}],"relation":"powered by"},{"group":"Place","items":[{"count":157,"name":"Sonoma, CA","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Sonoma Skypark Airport","note":"0Q9","unit":"","url":"https://eflight.com/airports/0Q9"},{"count":27610,"name":"California","note":"","unit":"aircraft registered","url":"https://eflight.com/states/CA"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"Accident on September 14, 2009 at Bend, OR: no injuries, substantial damage","note":"","unit":"","url":"https://eflight.com/accidents/WPR09LA475"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":1,"name":"FAA orders naming the Continental R670-series","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/continental-r670-series#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Waco QCF","note":"","unit":"","url":"https://eflight.com/models/waco/qcf#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 N11241 is now","note":"","unit":"","url":"https://eflight.com/live?q=N11241"}],"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":"N11241","maker":"Waco","model":"QCF","name":"Waco QCF N11241","state":"CA","type":"aircraft","url":"https://eflight.com/aircraft/N11241","year_built":1931},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}