The Piasecki H-21 Workhorse/Shawnee is an American helicopter, the fourth of a line of tandem rotor helicopters designed and built by Piasecki Helicopter (later Boeing Vertol). Commonly …

纵列双悬翼式直升机 H-21 （H-21 Shawnee (肖尼) / HRP Rescuer / Flying Banana）是 20 世纪 50 年代波音为美国陆军研制的运输直升机，用于充实一线运输直升机数量。 H-21 Shawnee 是 …

Although famous as an Army assault helicopter, the H-21 was originally designed as an Arctic rescue helicopter for the U.S. Air Force. First flying in 1952, the YH-21 prototype was powered …

2018年12月6日 · Piasecki 的H-21 “驮马”直升机乃是 Piasecki 直升机公司（后来成为了“波音Vertol”部）纵列式双旋翼生产线上的第四型直升机。 由于其独特的外形布局，在美国，该直 …

H-21 ワークホース/ショーニー （H-21 Workhorse/Shawnee）は、 1940年代 に アメリカ合衆国 の パイアセッキ・ヘリコプター 社（後の ボーイング・バートル 社）で開発された4番目の …

Commonly known as the “flying banana” for its shape, it was Piasecki’s largest helicopter to date. It was designed and built to be a multi-mission helicopter for the U.S. Air Force, able to carry …

2021年4月22日 · On 24 August 1956, a U.S. army H-21 made the first non-stop transcontinental helicopter flight across the United States with inflight refueling in 37 hours. Production of the H …

H-21 Shawnee 是比亚赛奇设计的第四种纵列旋翼式直升机（其中就有两种被海军采用成为搜救直升机，分别为 PV-3/HRP-1、PV-17/HRP-2，另一种是 PD-22），是一种多用途直升机，两具 …

2020年3月8日 · Page details technical specifications, development, and operational history of the Piasecki H-21 Workhorse Cargo /Passenger Transport Tandem-Rotor Helicopter including …