Iyo Sikorsky H-19 Chickasaw (yekambani nhamba yemuenzaniso S-55) yaive yakawanda-chinangwa chikopokopo chaishandiswa neUS Army neUSAF.
Yaive zvakare rezinesi-yakavakwa neWestland Aircraft seWestland Whirlwind muUnited Kingdom.
Kubudirira kweH-19 kwakatangwa pachivande naSikorsky pasina rubatsiro rwehurumende. Iyo helikopta yakatanga kugadzirwa seyeyedzero yezviverengero zvemagadzirirwo ezvinyorwa zvakagadzirirwa kupa hukuru hukuru-kutakura kugona pamwe chete nekugadzirisa kuri nyore.
Mutengi wekutanga aive USAF, iyo yakaraira ndege shanu dzeYH-19 kuti dziongororwe; ndege yekutanga yeYH-19 yaive musi wa10 Mbudzi 1949.
Izvi zvakateverwa nekuendeswa kweYH-19 yekutanga kuUSAF musi wa16 Kubvumbi 1950 uye kuendeswa kweherikoputa yekutanga yeHO4S-1 kuUS Navy musi wa31 Nyamavhuvhu 1950.