{"as_of":"2026-11-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Lansing & Shepherd","note":"","unit":"aircraft on the register","url":""}],"relation":"is a"},{"group":"Engine","items":[{"count":114,"name":"Warner SS165 series","note":"175 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/warner-ss165-series"}],"relation":"powered by"},{"group":"Owner","items":[{"count":14,"name":"Cavanaugh Flight Museum","note":"","unit":"aircraft in the fleet","url":"https://eflight.com/fleets/cavanaugh-flight-museum"}],"relation":"owned by"},{"group":"Place","items":[{"count":88,"name":"Denison, TX","note":"","unit":"aircraft registered in this town","url":""},{"count":29958,"name":"Texas","note":"","unit":"aircraft registered","url":"https://eflight.com/states/TX"}],"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/N1839#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N1839 is now","note":"","unit":"","url":"https://eflight.com/live?q=N1839"}],"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":"N1839","maker":"Lansing & Shepherd","model":"FOKKER DR-1 TRIPLANE","name":"Lansing & Shepherd FOKKER DR-1 TRIPLANE N1839","state":"TX","type":"aircraft","url":"https://eflight.com/aircraft/N1839","year_built":1980},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}