{"as_of":"2026-10-23","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":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":34,"name":"Montevideo, MN","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Montevideo-Chippewa County","note":"MVE","unit":"","url":"https://eflight.com/airports/MVE"},{"count":6933,"name":"Minnesota","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MN"}],"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/N13074#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 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 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 N13074 is now","note":"","unit":"","url":"https://eflight.com/live?q=N13074"}],"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":"N13074","maker":"Waco","model":"UBF","name":"Waco UBF N13074","state":"MN","type":"aircraft","url":"https://eflight.com/aircraft/N13074","year_built":1933},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}