{"as_of":"2026-10-26","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":2,"name":"Smith Michael R","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/smith-michael-r"}],"relation":"is a"},{"group":"Engine","items":[{"count":66,"name":"AeroVee 2.1","note":"80 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/aerovee-2-1"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"Smith Michael R","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=Smith Michael R"}],"relation":"owned by"},{"group":"Place","items":[{"count":8,"name":"Maynard, MA","note":"","unit":"aircraft registered in this town","url":""},{"count":2649,"name":"Massachusetts","note":"","unit":"aircraft registered","url":"https://eflight.com/states/MA"}],"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/N439M#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N439M is now","note":"","unit":"","url":"https://eflight.com/live?q=N439M"}],"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":null,"id":"N439M","maker":"Smith Michael R","model":"SONEX","name":"Smith Michael R SONEX N439M","state":"MA","type":"aircraft","url":"https://eflight.com/aircraft/N439M","year_built":2014},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}