{"as_of":"2026-10-23","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":19,"name":"Boeing A75 Stearman Kaydet","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/a75"},{"count":5,"name":"Boeing B75 Stearman Kaydet","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/b75"},{"count":2,"name":"Boeing E75 Stearman Kaydet","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/e75"},{"count":2,"name":"Waco UPF-7","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/upf-7"},{"count":1,"name":"Boeing PT-13","note":"","unit":"with this engine series","url":"https://eflight.com/models/boeing/pt-13"},{"count":1,"name":"Fairchild 24","note":"","unit":"with this engine series","url":"https://eflight.com/models/fairchild/24"},{"count":1,"name":"Waco QCF","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/qcf"},{"count":1,"name":"Waco RNF","note":"","unit":"with this engine series","url":"https://eflight.com/models/waco/rnf"}],"relation":"powers"},{"group":"Where they are","items":[{"count":7,"name":"Florida","note":"","unit":"of these aircraft","url":"https://eflight.com/states/FL"},{"count":4,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":3,"name":"Ohio","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OH"},{"count":3,"name":"Nevada","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NV"},{"count":2,"name":"Pennsylvania","note":"","unit":"of these aircraft","url":"https://eflight.com/states/PA"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"Western Antique Aeroplane & Automobile Museum","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/western-antique-aeroplane-automobile-museum"},{"count":1,"name":"Tsi Holdco INC","note":"","unit":"of these aircraft","url":"https://eflight.com/fleets/tsi-holdco-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":37,"horsepower":220,"id":"continental-w670-6a","maker":"Continental","name":"Continental W670-6A","thrust_lb":null,"type":"Piston (reciprocating)","url":"https://eflight.com/engines/continental-w670-6a"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}
