{"as_of":"2026-10-27","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Fitted to","items":[{"count":2,"name":"Quicksilver MXL II","note":"","unit":"with this engine series","url":"https://eflight.com/models/quicksilver/mxl-ii"},{"count":2,"name":"Quicksilver SPORT II","note":"","unit":"with this engine series","url":"https://eflight.com/models/quicksilver/sport-ii"},{"count":1,"name":"Aerotrike SAFARI","note":"","unit":"with this engine series","url":"https://eflight.com/models/aerotrike/safari"},{"count":1,"name":"Buckeye DREAM MACHINE","note":"","unit":"with this engine series","url":"https://eflight.com/models/buckeye/dream-machine"},{"count":1,"name":"Flightstar Inc FLIGHTSTAR II","note":"","unit":"with this engine series","url":"https://eflight.com/models/flightstar-inc/flightstar-ii"},{"count":1,"name":"Harmening HIGH FLYER","note":"","unit":"with this engine series","url":"https://eflight.com/models/harmening/high-flyer"},{"count":1,"name":"Powrachute Corp SKY RASCAL","note":"","unit":"with this engine series","url":"https://eflight.com/models/powrachute-corp/sky-rascal"},{"count":1,"name":"Quad City Ultralight Acft Corp CHALLENGER II","note":"","unit":"with this engine series","url":"https://eflight.com/models/quad-city-ultralight-acft-corp/challenger-ii"}],"relation":"powers"},{"group":"Where they are","items":[{"count":7,"name":"Wisconsin","note":"","unit":"of these aircraft","url":"https://eflight.com/states/WI"},{"count":6,"name":"Illinois","note":"","unit":"of these aircraft","url":"https://eflight.com/states/IL"},{"count":5,"name":"Michigan","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MI"},{"count":4,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":4,"name":"Missouri","note":"","unit":"of these aircraft","url":"https://eflight.com/states/MO"}],"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":72,"horsepower":52,"id":"rotax-503dcsi","maker":"Rotax","name":"Rotax 503DCSI","thrust_lb":null,"type":"Two-cycle piston","url":"https://eflight.com/engines/rotax-503dcsi"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}