{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":7,"name":"Arlington","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/arlington"},{"count":7,"name":"Arlington SISU 1A","note":"","unit":"registered","url":"https://eflight.com/models/arlington/sisu-1?variant=SISU 1A"},{"count":null,"name":"Built of composite","note":"A glass-fibre glider.","unit":"","url":"https://eflight.com/materials/composite"}],"relation":"made by"},{"group":"Where they are","items":[{"count":2,"name":"Texas","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TX"},{"count":1,"name":"Tennessee","note":"","unit":"of these aircraft","url":"https://eflight.com/states/TN"},{"count":1,"name":"Oregon","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OR"},{"count":1,"name":"Oklahoma","note":"","unit":"of these aircraft","url":"https://eflight.com/states/OK"},{"count":1,"name":"New York","note":"","unit":"of these aircraft","url":"https://eflight.com/states/NY"}],"relation":"registered in"},{"group":"Biggest operators","items":[{"count":1,"name":"Aviation Museum of Kentucky INC","note":"","unit":"of these aircraft","url":"https://eflight.com/search?q=Aviation Museum of Kentucky INC"}],"relation":"owned by"},{"group":"Record","items":[{"count":1,"name":"NTSB accidents and incidents involving the SISU 1","note":"1 fatal","unit":"cases since 1982","url":"https://eflight.com/models/arlington/sisu-1#accidents"}],"relation":"involved in"},{"group":"Airworthiness","items":[{"count":1,"name":"Failure reports filed on the SISU 1","note":"","unit":"reports since 1995","url":"https://eflight.com/models/arlington/sisu-1#airworthiness"}],"relation":"subject to"},{"group":"Analytics","items":[{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"},{"count":null,"name":"The fleet by kind, state and age","note":"","unit":"","url":"https://eflight.com/analytics/fleet"},{"count":null,"name":"Biggest makers and model families","note":"","unit":"","url":"https://eflight.com/analytics/makers"}],"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":{"built_of":{"material":"composite","name":"composite","note":"A glass-fibre glider."},"id":"arlington/sisu-1","name":"Arlington SISU 1","registered":7,"type":"model","url":"https://eflight.com/models/arlington/sisu-1","versions":1},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}