Piasecki X-49 "SpeedHawk" - vectored thrust ducted propeller (VTDP) experimental helicopter
3:55
YouTubeMechDesignTV
Piasecki X-49 "SpeedHawk" - vectored thrust ducted propeller (VTDP) experimental helicopter
[ video : Piasecki ]
788.4K viewsNov 15, 2018
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Piasecki's ARES Tilt-Duct VTOL Aircraft Successfully Completes First Flight
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3.2K views · 42 reactions | The Piasecki X-49 "SpeedHawk" is an American four-bladed, twin-engined development by Piasecki Aircraft. The X-49A is based on the airframe of a Sikorsky YSH-60F Seahawk, but utilizes Piasecki's proprietary vectored thrust ducted propeller (VTDP) design and includes the addition of lifting wings. | Military Leak | Facebook
3:43
3.2K views · 42 reactions | The Piasecki X-49 "SpeedHawk" is an American four-bladed, twin-engined development by Piasecki Aircraft. The X-49A is based on the airframe of a Sikorsky YSH-60F Seahawk, but utilizes Piasecki's proprietary vectored thrust ducted propeller (VTDP) design and includes the addition of lifting wings. | Military Leak | Facebook
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