Piasecki X-49 SpeedHawk - Wikipedia
The Piasecki X-49 " SpeedHawk " is an American four-bladed, twin-engined experimental high-speed compound helicopter developed by Piasecki Aircraft. The X-49A is based on the …
X-49A“速度鹰”直升机 - 百度百科
X-49A“速度鹰” (Speedhawk)是由美国军方提供经费开发的高速直升机技术验证和发展项目，目标是通过对直升机动力系统的改进设计，大幅度提高现役直升机的飞行速度、作战半径、飞行性 …
Lockheed Martin X-59 Quesst - Wikipedia
Preliminary design started in February 2016, with the X-59 planned to begin flight testing in 2021. After delays, as of January 2025, it is planned to be delivered to NASA for flight testing in 2025.
旋翼通鉴：生不逢时的高速黑鹰直升机，X-49速度鹰的突破与落幕
2019年4月17日 · X-49 速度鹰（Speedhawk）是一型实验性质的复合式直升机，该机的研制是用来论证美军现役的直升机能否突破200节（约360千米/时）的速度大关。 2000年10月份，美国 …
Piasecki X-49 Speedhawk - Military Factory
2020年3月8日 · For the American military, it is seeking to develop a compound helicopter product that can consistently exceed 230 miles per hour while displaying inherently strong range, …
Piasecki’s X-49 is the Fastest Sea Hawk in Existence
2015年8月8日 · Dubbed the X-49 SpeedHawk, it certainly lives up to its name. Thanks to the lift generated by the wings, a significant load is removed from the main rotor, allowing for a 50% …
X-49“速度鹰”直升机即将首飞航空资讯机务在线 - 认真、负责、细 …
2007年6月8日 · 被Piasecki命名为“速度鹰”的X-49是由美陆军航空应用技术部提供资金发展而来的，以验证将现有直升机速度提高到200节（360 km/h）的能力。 VTDP替代了尾桨并提供向前 …
Piasecki X-49 - Detailed Pedia
The Piasecki X-49 " SpeedHawk " is an American four-bladed, twin-engined experimental high-speed compound helicopter developed by Piasecki Aircraft. The X-49A is based on the …
NASA unveils its revolutionary X-59 Quesst 'quiet' supersonic jet ...
2024年1月12日 · As NASA's newest X-plane, the X-59 is designed to break the sound barrier without the thunderous sonic booms that typically occur when aircraft go supersonic. Instead, …
X-49A“速度鹰”验证机 - 百度百科
X-49A是在SH-60F“海鹰”直升机上加装机翼及矢量推力涵道螺旋桨推进器 (VTDP)的复合直升机，技术目标是提高现役陆军直升机的速度、航程和飞行高度，并且在需要的时候可以利用X …
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