{"as_of":"2026-10-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":63,"name":"Boeing A75 Stearman Kaydet","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/a75"},{"count":15,"name":"Boeing B75 Stearman Kaydet","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/b75"},{"count":11,"name":"Waco UPF-7","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/upf-7"},{"count":7,"name":"Waco QCF","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/qcf"},{"count":7,"name":"Waco UIC","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/uic"},{"count":6,"name":"Fairchild(Howard) M-62","note":"","unit":"with this engine series","url":"https://eflight.com/models/fairchild-howard/m-62"},{"count":6,"name":"Waco UEC","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/uec"},{"count":5,"name":"Waco UBF","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/ubf"}],"relation":"powers"},{"group":"Where they are","items":[{"count":16,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":15,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":14,"name":"Ohio","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OH"},{"count":10,"name":"Washington","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WA"},{"count":9,"name":"New York","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NY"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":2,"name":"Southern Aircraft Consultancy INC Trustee","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/southern-aircraft-consultancy-inc-trustee"},{"count":2,"name":"Air Cav Helicopters LLC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/air-cav-helicopters-llc"},{"count":1,"name":"Yanks Air Museum","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/yanks-air-museum"},{"count":1,"name":"Vintage Aero Collection INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/vintage-aero-collection-inc"}],"relation":"owned by"},{"group":"Analytics","items":[{"count":null,"name":"The fleet by engine type","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Every engine series","note":"","unit":"","url":"https://eflight.com/engines"}],"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":{"aircraft":170,"horsepower":225,"id":"continental-r670-series","maker":"Continental","name":"Continental R670-series","thrust_lb":null,"type":"Piston (reciprocating)","url":"https://eflight.com/engines/continental-r670-series"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}