🌐EnglishEnglishBahasa IndonesiaDeutschEspañolРусскийفارسی中文日本語EntityQ1757247· pop 12· linked from 38 articlesPA-97 Heli-StatAlso known as Piasecki PA-97 Heli-Statexperimental helicopter/airship by Piasecki AircraftWikidata factsImageUSN Piasecki Helistat 1985.jpgSources (2)wikidata.orgen.wikipedia.orgvia Wikidata · CC0Available in 11 languagesEspañolDeutsch中文日本語РусскийBahasa IndonesiaEsperantoSlovenianTajikفارسیvia Wikidata sitelinks · CC0Connectionshelicopter flight controlsEntityheliumEntityCategories1980s United States experimental aircraft1980s United States helicoptersAircraft first flown in 1986Aircraft without specificationsAirships of the United StatesCancelled military aircraft projects of the United StatesFour-engined piston helicoptersPiasecki aircraftQuadrotors