{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":2,"name":"Kropelin Barry R","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/kropelin-barry-r"}],"relation":"is a"},{"group":"Engine","items":[{"count":61,"name":"Rotax 582","note":"65 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/rotax-582"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"West Benjamin M","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=West Benjamin M"}],"relation":"owned by"},{"group":"Place","items":[{"count":31,"name":"Sun Prairie, WI","note":"","unit":"aircraft registered in this town","url":""},{"count":6166,"name":"Wisconsin","note":"","unit":"aircraft registered","url":"https://eflight.com/states/WI"}],"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/N420BK#records-check"}],"relation":"involved in"},{"group":"Live","items":[{"count":null,"name":"Where N420BK is now","note":"","unit":"","url":"https://eflight.com/live?q=N420BK"}],"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":"N420BK","maker":"Kropelin Barry R","model":"RBIPE","name":"Kropelin Barry R RBIPE N420BK","state":"WI","type":"aircraft","url":"https://eflight.com/aircraft/N420BK","year_built":2011},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}