{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1,"name":"Smith Garrett","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/smith-garrett"}],"relation":"is a"},{"group":"Engine","items":[{"count":81,"name":"Mattituck TMX 360","note":"180 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/mattituck-tmx-360"}],"relation":"powered by"},{"group":"Place","items":[{"count":27,"name":"Belvidere, IL","note":"","unit":"aircraft registered in this town","url":""},{"count":8067,"name":"Illinois","note":"","unit":"aircraft registered","url":"https://eflight.com/states/IL"}],"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/N257S#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N257S is now","note":"","unit":"","url":"https://eflight.com/live?q=N257S"}],"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":"N257S","maker":"Smith Garrett","model":"RV-7A","name":"Smith Garrett RV-7A N257S","state":"IL","type":"aircraft","url":"https://eflight.com/aircraft/N257S","year_built":2007},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}