{"as_of":"2026-11-06","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Model families","items":[{"count":5,"name":"Northwestern PORTERFIELD 35","note":"","unit":"registered","url":"https://eflight.com/models/northwestern/porterfield-35"}],"relation":"makes"},{"group":"Engines","items":[{"count":4,"name":"Continental A65 / C65 series","note":"65 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-a65-c65-series"},{"count":2,"name":"Lycoming O-145B series","note":"65 hp","unit":"of these aircraft","url":"https://eflight.com/engines/lycoming-o-145b-series"},{"count":2,"name":"Leblond 70 series","note":"70 hp","unit":"of these aircraft","url":"https://eflight.com/engines/leblond-70-series"},{"count":1,"name":"Continental C85-8F","note":"85 hp","unit":"of these aircraft","url":"https://eflight.com/engines/continental-c85-8f"}],"relation":"powered by"},{"group":"Where they are","items":[{"count":3,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"},{"count":2,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":2,"name":"New York","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NY"},{"count":1,"name":"Oklahoma","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OK"},{"count":1,"name":"Ohio","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OH"}],"relation":"registered in"},{"group":"Analytics","items":[{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"},{"count":null,"name":"Accidents by model and by maker","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"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":{"id":"northwestern","name":"Northwestern","registered":11,"type":"maker","url":"https://eflight.com/makers/northwestern"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}