{"as_of":"2026-11-05","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":4,"name":"Gulfstream G-IV Gulfstream IV","note":"","unit":"with this engine series","url":"https://eflight.com/models/gulfstream/g-iv"},{"count":2,"name":"Gulfstream American Corp G-1159","note":"","unit":"with this engine series","url":"https://eflight.com/models/gulfstream-american-corp/g-1159"}],"relation":"powers"},{"group":"Where they are","items":[{"count":2,"name":"Pennsylvania","note":"","unit":"of these aircraft","url":"https://eflight.com/states/PA"},{"count":2,"name":"Delaware","note":"","unit":"of these aircraft","url":"https://eflight.com/states/DE"},{"count":1,"name":"Illinois","note":"","unit":"of these aircraft","url":"https://eflight.com/states/IL"},{"count":1,"name":"California","note":"","unit":"of these aircraft","url":"https://eflight.com/states/CA"}],"relation":"registered in"},{"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":6,"horsepower":11400,"id":"rolls-royce-mk511-14","maker":"Rolls-Royce","name":"Rolls-Royce MK511-14","thrust_lb":null,"type":"Turbojet","url":"https://eflight.com/engines/rolls-royce-mk511-14"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}