{"as_of":"2026-11-04","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":13,"name":"Waco UBF","note":"","unit":"registered","url":"https://eflight.com/models/waco/ubf"},{"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":987,"name":"Continental W670 series","note":"250 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/continental-w670-series"}],"relation":"powered by"},{"group":"Owner","items":[{"count":11,"name":"Dream Waco LLC","note":"","unit":"aircraft in the fleet","url":"https://eflight.com/fleets/dream-waco-llc"}],"relation":"owned by"},{"group":"Place","items":[{"count":1090,"name":"Oklahoma City, OK","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Okc Will Rogers International","note":"OKC","unit":"","url":"https://eflight.com/airports/OKC"},{"count":null,"name":"Wiley Post Airport","note":"PWA","unit":"","url":"https://eflight.com/airports/PWA"},{"count":null,"name":"Clarence E Page Municipal","note":"RCE","unit":"","url":"https://eflight.com/airports/RCE"},{"count":null,"name":"Sundance Airport","note":"HSD","unit":"","url":"https://eflight.com/airports/HSD"},{"count":5655,"name":"Oklahoma","note":"","unit":"aircraft registered","url":"https://eflight.com/states/OK"}],"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/N13444#records-check"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":2,"name":"Failure reports filed on the Waco UBF","note":"","unit":"reports since 1995","url":"https://eflight.com/models/waco/ubf#airworthiness"},{"count":1,"name":"Approved modifications for the Waco UBF","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/waco/ubf#airworthiness"},{"count":1,"name":"FAA orders naming the Continental W670 series","note":"","unit":"airworthiness directives","url":"https://eflight.com/engines/continental-w670-series#airworthiness"},{"count":8,"name":"Failure reports on the Continental W670 series","note":"","unit":"reports since 1995","url":"https://eflight.com/engines/continental-w670-series#airworthiness"},{"count":null,"name":"Report filed on this aircraft: Lock Nut, broken","note":"2015-09-15","unit":"","url":"https://eflight.com/systems/engine"},{"count":null,"name":"Report filed on this aircraft: Lock Nut, broken","note":"2015-09-15","unit":"","url":"https://eflight.com/systems/engine"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Waco UBF","note":"","unit":"","url":"https://eflight.com/models/waco/ubf#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 N13444 is now","note":"","unit":"","url":"https://eflight.com/live?q=N13444"}],"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":"N13444","maker":"Waco","model":"UBF","name":"Waco UBF N13444","state":"OK","type":"aircraft","url":"https://eflight.com/aircraft/N13444","year_built":1933},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
