{"as_of":"2026-11-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":2,"name":"Williams John J","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/williams-john-j"}],"relation":"is a"},{"group":"Engine","items":[{"count":9,"name":"Revmaster 2100D","note":"65 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/revmaster-2100d"}],"relation":"powered by"},{"group":"Place","items":[{"count":31,"name":"Tuttle, OK","note":"","unit":"aircraft registered in this town","url":""},{"count":5653,"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/N111SF#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N111SF is now","note":"","unit":"","url":"https://eflight.com/live?q=N111SF"}],"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":"N111SF","maker":"Williams John J","model":"WILLIAMS CX4","name":"Williams John J WILLIAMS CX4 N111SF","state":"OK","type":"aircraft","url":"https://eflight.com/aircraft/N111SF","year_built":2021},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}