{"as_of":"2026-10-26","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"Design","items":[{"count":8,"name":"Sportavia-Putzer RF5","note":"","unit":"registered","url":"https://eflight.com/models/sportavia-putzer/rf5"},{"count":8,"name":"Sportavia Putzer","note":"","unit":"aircraft on the register","url":"https://eflight.com/makers/sportavia-putzer"},{"count":null,"name":"Built of steel tube, wood and fabric","note":"as the model family is built; the register does not record it per aircraft","unit":"","url":"https://eflight.com/materials/steel-wood-fabric"}],"relation":"is a"},{"group":"Engine","items":[{"count":17,"name":"Limbach 1700E","note":"68 hp","unit":"aircraft with this engine series","url":"https://eflight.com/engines/limbach-1700e"}],"relation":"powered by"},{"group":"Owner","items":[{"count":1,"name":"N99809 LLC","note":"","unit":"aircraft registered to this organisation","url":"https://eflight.com/search?q=N99809 LLC"}],"relation":"owned by"},{"group":"Place","items":[{"count":221,"name":"Boulder, CO","note":"","unit":"aircraft registered in this town","url":""},{"count":null,"name":"Boulder Municipal","note":"BDU","unit":"","url":"https://eflight.com/airports/BDU"},{"count":7454,"name":"Colorado","note":"","unit":"aircraft registered","url":"https://eflight.com/states/CO"}],"relation":"registered in"},{"group":"Record","items":[{"count":null,"name":"No NTSB accident or incident record under this tail number","note":"","unit":"","url":"https://eflight.com/aircraft/N99809#records-check"}],"relation":"involved in"},{"group":"Analytics","items":[{"count":null,"name":"Accident history of the Sportavia-Putzer RF5","note":"","unit":"","url":"https://eflight.com/models/sportavia-putzer/rf5#accidents"},{"count":null,"name":"Accidents by model, with rates per thousand registered","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-model"}],"relation":"compared in"},{"group":"Live","items":[{"count":null,"name":"Where N99809 is now","note":"","unit":"","url":"https://eflight.com/live?q=N99809"}],"relation":"seen at"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"built_of":{"inherited_from_model":true,"material":"steel-wood-fabric","name":"steel tube, wood and fabric","note":"The Fournier motor gliders: all wood."},"id":"N99809","maker":"Sportavia Putzer","model":"RF5B SPERBER","name":"Sportavia Putzer RF5B SPERBER N99809","state":"CO","type":"aircraft","url":"https://eflight.com/aircraft/N99809","year_built":1975},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}