{"as_of":"2026-10-26","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":27,"name":"Bird","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/bird"},{"count":7,"name":"Bird CK","note":"","unit":"registered","url":"https://eflight.com/models/bird/ck?variant=CK"},{"count":null,"name":"Built of steel tube, wood and fabric","note":"A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering.","unit":"","url":"https://eflight.com/materials/steel-wood-fabric"}],"relation":"made by"},{"group":"Engines","items":[{"count":4,"name":"Kinner B5 series","note":"125 hp","unit":"of these aircraft","url":"https://eflight.com/engines/kinner-b5-series"},{"count":1,"name":"Continental W670 series","note":"250 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-w670-series"},{"count":1,"name":"Continental R670-series","note":"225 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-r670-series"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":2,"name":"New York","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NY"},{"count":1,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":1,"name":"Pennsylvania","note":"","unit":"of these aircraft","url":"https://eflight.com/states/PA"},{"count":1,"name":"Oregon","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OR"},{"count":1,"name":"Illinois","note":"","unit":"of these aircraft","url":"https://eflight.com/states/IL"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"Rhinebeck Aerodrome Museum","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/rhinebeck-aerodrome-museum"}],"relation":"owned by"},{"group":"Record","items":[{"count":3,"name":"NTSB accidents and incidents involving the CK","note":"0 fatal","unit":"cases since 1982","url":"https://eflight.com/models/bird/ck#accidents"}],"relation":"involved in"},{"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-wood-fabric","name":"steel tube, wood and fabric","note":"A biplane of the 1920s and 1930s: steel-tube fuselage, wooden wings, fabric covering."},"id":"bird/ck","name":"Bird CK","registered":7,"type":"model","url":"https://eflight.com/models/bird/ck","versions":1},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}