{"as_of":"2026-11-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":1730,"name":"Stinson","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/stinson"},{"count":9,"name":"Stinson JR. SR","note":"","unit":"registered","url":"https://eflight.com/models/stinson/jr-sr?variant=JR. SR"},{"count":null,"name":"Built of steel tube and fabric","note":"","unit":"","url":"https://eflight.com/materials/steel-fabric"}],"relation":"made by"},{"group":"Engines","items":[{"count":3,"name":"Lycoming R680-4P-B4","note":"225 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-r680-4p-b4"},{"count":2,"name":"Lycoming R680E series","note":"300 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-r680e-series"},{"count":2,"name":"Lycoming R680","note":"215 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-r680"},{"count":1,"name":"Pratt & Whitney R-985-AN-1","note":"450 hp","unit":"of these aircraft","url":"https://eflight.com/engines/pratt-whitney-r-985-an-1"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":3,"name":"Alaska","note":"","unit":"of these aircraft","url":"https://eflight.com/states/AK"},{"count":1,"name":"Wisconsin","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WI"},{"count":1,"name":"Washington","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WA"},{"count":1,"name":"New Hampshire","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NH"},{"count":1,"name":"Minnesota","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MN"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"Museum Of Flight Foundation","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/museum-of-flight-foundation"},{"count":1,"name":"Lake Clark Holdings LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Lake Clark Holdings LLC"}],"relation":"owned by"},{"group":"Record","items":[{"count":1,"name":"NTSB accidents and incidents involving the JR. SR","note":"0 fatal","unit":"cases since 1982","url":"https://eflight.com/models/stinson/jr-sr#accidents"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":4,"name":"Approved modifications for the JR. SR","note":"","unit":"supplemental type certificates","url":"https://eflight.com/models/stinson/jr-sr#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"},{"count":null,"name":"The fleet by kind, state and age","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":{"material":"steel-fabric","name":"steel tube and fabric","note":null},"id":"stinson/jr-sr","name":"Stinson JR. SR","registered":9,"type":"model","url":"https://eflight.com/models/stinson/jr-sr","versions":1},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
